Archive for the ‘Software and Web-Based Applications’ Category

The Next Big Thing in the U.S.? A Music Service Named Spotify

Tuesday, November 3rd, 2009

These days, Spotify is all the rage in Europe and other parts of the world. They’re working to begin serving the U.S. market (lots of licensing issues).

From a Reuters Article:

The Sweden-based startup Spotify, launched for public access in October 2008, has momentum like no other digital music service of the last six years. It offers on-demand music streaming, in both free and premium services, and now claims to have more than 6 million users in Sweden, Norway, Finland, the United Kingdom, France and Spain. At one point it reported signing up new members at a rate of 50,000 per day, although that figure has fallen since September, when the service restricted its free version to invited guests in the United Kingdom.

Spotify has won high marks from reviewers for the ease with which it provides access to a catalog of more than 6 million tracks from majors and indies alike and the unobtrusive way it delivers advertising.

Access the Spotify Features Page to Get an Idea of What’s Available

Access the Complete Reuters Article

Source: Reuters

Music in the USA
Here are three of a growing number of services available in the U.S.

See Also: Pandora Music Service (Free and Fee-Based Accounts)

See Also: Slacker (Free and Fee-Based Accounts)

See Also: lala (Free to Listen Online, Pay to Purchase Individual Tracks)

Flickr Launches a Directory of Apps, Take a Stroll Through the Flickr App Garden

Tuesday, November 3rd, 2009

Needless to say, Flickr is one of the most popular social sites on the Internet. Over the years, developers have built mass quantities of applications to do a variety of things with the Flickr database.

Now, the Flickr team has compiled many of them in a single location, the App Garden. Categories include:

+ Apps We’ve Noticed, “We” Being the Flickr Team

+ Explore Apps using a Word Cloud

+ Developers We’ve Noticed

+ You Can Even Keyword Search the App Garden.

There is mucho content here. Give yourself a few minutes each day to find a few new cool apps or devote one, maybe two afternoons to not only find but also try out what’s available.

The common thread behind all of these apps is that they were built using the Flickr API.

Enjoy your walk through the Flickr App Garden.

New Online Resource: CompareMyDocs.com

Tuesday, November 3rd, 2009

As its name says, CompareMyDocs.com lets you, “compare,recombine and merge your document versions.” According to the web site, this is a beta release and it’s free, at least at the present time. CompareMyDocs.com “works best” with text only documents that don’t contain tables or images. Three format types can be compared at the present time:

+ .Doc
+ .Docx
+ .RTF

Click the ? on the home page for a video tour.

From CNET:

Just like TextFlow [a similar product from the same company], Compare My Docs color codes any changes it finds between the different revisions of a document and gives you a quick and easy way to accept, reject, or set aside a change. This means you can cruise through a document and keep the changes or revisions you like, while keeping an active log of what you don’t.

When finished, you’ll have a new version that has all of those changes, which can be saved either as a Word doc or rich text file back on your hard drive. Although unlike what you can do in TextFlow, with Compare My Docs there’s no way to publish the finished product to the Web or save it in parent company Nordic River’s servers for safe keeping; something that seems meant to entice users to try out TextFlow instead.

Source: CNET

New ELI 7 Things… Brief Explores Google Wave

Friday, October 30th, 2009

Access the Document (2 pages; PDF)

From the Summary:

Google Wave is a web-based application that represents a rethinking of electronic communication. Users create online spaces called “waves,” which include multiple discrete messages and components that constitute a running, conversational document. Users access waves through the web, resulting in a model of communication in which rather than sending separate copies of multiple messages to different people, the content resides in a single space. Wave offers a compelling platform for personal learning environments because it provides a single location for collecting information from diverse sources while accommodating a variety of formats, and it makes interactive coursework a possibility for nontechnical students. Wave challenges us to reevaluate how communication is done, stored, and shared between two or more people.

Source: EDUCAUSE Learning Initiative

A Brief Comment From Gary:
I’ve been using Google Wave for about a month and I’m still unsure if this is going to be the next big thing. It’s a potentially powerful tool and might be extremely useful where and when instant collaboration needs to take place between people at different locations. Yes, many of these things can be done with any IM client and that’s how I think of Google Wave as of today (remember this is not even a beta release, it’s a preview) as IM on steroids. If developers are able to integrate compelling and useful applications into the Google Wave service, then it might be a home run. The other challenge Google could face if they expect the masses to use Wave is the learning curve. For many potential users, it will not be as easy to ue as is, let’s say, Google search is. Just type and press search. There are a lot of bells and whistles and without using some of its many features these users might stay with tools they are familiar with like IM, SMS, e-mail, and/or one of the many collaboration tools the’re already familiar with. Of course, for many companies who pay for this type of service, the price point, free, might be a reason to retrain staff on how to best use the power of Google Wave.

Tools to Test the Accessibility of Web 2.0 Resources

Wednesday, October 28th, 2009

From an ACM TechNews Abstract:

The University of Southampton’s School of Electronics and Computer Science (ECS) is launching a study that will explore how well people with disabilities can access Web services such as blogs, wikis, and social networking sites. The study, led by Mike Wald and E.A. Draffan in ECS’ Learning Societies Lab, is based on an accessibility toolkit that will enable users to test the accessibility of Web 2.0 services. The accessibility tools were developed as a result of the LexDis project, which identified strategies learners can use to enhance their e-learning experience. Part of the toolkit, Web2Access, provides an online checking system for any interactive Web-based service such as Facebook. Another key feature of the accessibility kit is Study Bar, which can work with all browsers and reads text out loud, spell checks, provides a dictionary, and can enlarge or change text fonts and colors to make text more readable. “We developed it because nowadays users contribute as well as read information and so you cannot just click on a button to see if Web sites are accessible and easy to use,” Draffan says. Wald says it is the first time that there has been a systematic way to evaluate and provide the results of accessibility testing of Web services.

Access the Original News Release from the University of Southampton, U.K.

Accessibility Toolkit

Source: ACM, U. of Southampton

U.S. Department of Labor Releases Unemployment Benefit Estimation Tool

Tuesday, October 27th, 2009

US Department of Labor and partners unveil tool to help unemployed homeowners verify income received from unemployment compensation

The U.S. Department of Labor today announced the creation of a new Unemployment Benefit Estimation Tool that allows mortgage companies and housing counselors to project a homeowner’s unemployment insurance income for loan modification purposes. The tool was created as part of collaborative effort among the Labor Department, the U.S. Department of Treasury, Fannie Mae, Freddie Mac, the Federal Reserve Bank of New York and the Hope Now Alliance.

“Helping unemployed Americans stay in their homes while they seek out new careers is critical to their success and is simply the right thing to do,” said Assistant Secretary of Labor for Employment and Training Jane Oates. “This new tool will allow mortgage companies and housing counselors to accurately project the income homeowners may receive through unemployment compensation when processing home loan modification applications.”

New loan modification programs created through the American Recovery and Reinvestment Act of 2009 — such as the Making Home Affordable Program — allow mortgage companies to utilize nine months of a homeowner’s unemployment insurance income as part of determining his or her qualifications for a loan modification. Recent extensions of unemployment benefits have made this possible, and the tool unveiled today will make it easier to calculate benefits over several months. Prior to this new program, unemployment made it nearly impossible to qualify for a home loan modification.

+ Unemployment Benefit Estimation Tool

Source: U.S. Department of Labor Department, U.S. Department of Treasury, Fannie Mae, Freddie Mac, Federal Reserve Bank of New York, Hope Now Alliance

You Asked for It! Users Can Now Share Folders with Google Docs

Wednesday, October 14th, 2009

If you’re a Google Docs user, the products blog reports that you can now share folders with other Google Docs users.

From the Blog Post:

The biggest update is the introduction of shared folders — far and away the most requested Google Docs feature. Shared folders work how you would expect them to and we hope they will make it easier for teams and groups to collaborate on documents together.

The blog post goes on to explain how to share folders and also lists a couple of other features:

+ “Items not in folders” (under “More searches”). This was requested by Google Docs users.

+ “Updated” look to the interface.

Source: Google Docs Blog

New from Intel Labs: Dispute Finder: Attempting to Separate Fact from Fiction

Tuesday, October 13th, 2009

This is a beta release from Intel Labs and is only available for Firefox users. We’re going to test out this service and report back in a few weeks.

From the Article:

Journalism has become less black and white today. From healthcare reform to progress in Afghanistan, commentators on cable news and blogs have refracted “the truth” into many shades of gray.

So when someone throws out a statistic, how do you know it’s true?

“We’re seeing the end of the newspapers, and with them go many of the fact-checkers*,” says Rob Ennals, a research scientist at Intel Labs in Berkeley, Calif. “We now have a far more anarchistic view of the news. You can’t know people’s biases.”

To help readers, Mr. Ennals developed an online veracity alert system. The software, called Dispute Finder, sniffs through what you are reading online. If anything smells fishy – perhaps questionable poll results or references to “death panels” – Ennals’s code blows a whistle and says, “This is disputed. Here’s the evidence.”

1) To download, head to the Dispute Finder Web Site

2) Install the Firefox (only) extension

Once installed, Dispute Finder starts to compare what you read online to its database of recognized contentions. When you stumble upon a dubious claim, the program automatically highlights that section in pink.

For example, Dispute Finder will highlight “Eskimos have many words for snow.” Curious users can click on the pink text to find out why. A little explainer appears as a pop-up bubble. It says: “ ‘Contrary to popular belief, the Eskimos do not have more words for snow than do speakers of English,’ according to linguist Steven Pinker in his book ‘The Language Instinct.’ ‘Counting generously, experts can come up with about a dozen.’ ”

This evidence also comes with a citation that links to the original website, so you can scrutinize the authority of the allegation. And, whether you agree with the statement or not, each explainer also comes with an “ignore” button, which tells the program not to highlight this dispute in the future.

Much More in the Complete Article

Learn more via the Dispute Finder FAQ.

Dispute Finder also has a “Hot Claims” page that shows some of the disputed claims users have added recently.

Source: Christian Science Monitor

* Human fact checkers and news librarians are not all gone. Many are still doing great work. It was just last week when we posted an article by Paula Hane who discussed several “human powered” services that do there best to separate fact from fiction. If you missed that post, here’s the link.

Software Tool Allows You to Backup Your Facebook Data with a Single Click

Monday, October 12th, 2009

We use Facebook occasionally. However, we know people who are Facebook power users. If you’re a power user or know somone who is, here’s software tool that allows you to backup to your computer the data you’ve placed on the Facebook site and more. The software is called SocialSafe.

From TechRadar:

A new app allows you to back-up all of the content on your Facebook page, including comments and information that’s posted on your wall. SocialSafe was launched in the summer and is a piece of software that helps protect the information posted on your Facebook page. This service has now been updated with a Facebook Wall Back-up app – a Ronseal-esque function that allows you to collate all the content on your Facebook wall. This is also complimented with a new Time Capsule feature, which allows you to chart the history of your Facebook pages.

Learn more and download the software here. Social Safe is a fee-based tool but it only costs $2.99 (for the time being). It’s available for both PC and Mac.

The Mobile Researcher: AIP (American Institute of Physics) Releases New iPhone/iTouch App

Friday, October 9th, 2009

The name of the new iPhone/iTouch app is iResearch.

It is a free download but of course you need a AIP subscription (either individual or institutional) or a pay-per-view account to get to the full text content.

From the Announcement:

iResearch was developed to provide physicists, engineers, scientists, and students, with mobile access to valuable physics journal content. Users may access iResearch via the Apple iTunes store to download the application for version 3.0 and higher.

[Snip]

In addition to readily accessing AIP content through a Wi-Fi network or cellular connection, iResearch enables users to optionally save files in PDF format on their iPhone or iPod touch for offline viewing.

[Snip]

The journals available in the iResearch application include: Applied Physics Letters, Biomicrofluidics, Chaos, Journal of Applied Physics, The Journal of Chemical Physics, Journal of Mathematical Physics, Journal of Physical and Chemical Reference Data, Journal of Renewable and Sustainable Energy, Low Temperature Physics, Physics of Fluids, Physics of Plasmas, and Review of Scientific Instruments.

Here’s a direct link to the iResearch app via the iTunes Store.

See Also: This is Not AIP’s First Mobile Product/Service
In August of 2009, AIP Began Offering a Mobile Friendly Version of the Journal of Renewable and Sustainable Energy (JRSE).
You Don’t Need an iPhone/iTouch to access this journal. It’s Accessible Using Any Mobile Web Browser.

Source: AIP

See Also: Peter Jacso’s Review of the Scitation Database from AIP
We linked to it on Thursday, October 8, 2009.

Hat Tip: Gerry M.

Just Released by EDUCAUSE: New 7 Things… Brief Explores Collaborative Annotation

Friday, October 9th, 2009

From the Summary:

Collaborative annotation tools expand the concept of social bookmarking by allowing users not only to share bookmarks but also to digitally annotate web pages. Rather than simply pointing to particular web pages, collaborative annotation lets users highlight specific content on a web page and add a note explaining their thoughts or pointing to additional resources. Students who use these tools for academic research can, over time, build a collection of their own studies and observations in much the same way generations of students have saved texts with dog-eared pages, highlighted passages, scribbled comments, and sticky notes.

Access the Full Text Document (2 pages; PDF)

See Also: Other “Briefs” in this Series

Source: EDUCAUSE, ELI (EDUCAUSE Learning Initiative)

Are You an Adobe Photoshop User with an iPhone?

Friday, October 9th, 2009

If you are (or know someone who is) a Adobe Photoshop user and have an iPhone, have we got a deal for you. A version of Photoshop is now available for the iPhone and get this, it’s free. You can download it here via the iPhone App Store.

From the News Release:

Photoshop.com Mobile provides consumers a convenient way to edit photos, apply effects and share images instantly with friends — all with the flick of a finger. Seamless integration with users’ free Photoshop.com accounts enables photo sharing and data back-up, saving them valuable space on their iPhones.

[Snip]

Photoshop.com Mobile for iPhone provides a fun, seamless experience to view photos with full-screen previews and edit images with gesture-based editing. Consumers can transform their photos with essential edits like crop, rotate and flip. Users can correct and play with color by adjusting the saturation and tint, enhancing the exposure and vibrancy and converting images to black and white.

Photoshop.com Mobile for iPhone also offers eye-catching special effects. The Sketch tool helps photos look like drawings, and Soft Focus can give photos a subtle blur for artistic effect…

After making personalized edits, users can upload photos from their iPhone to their Photoshop.com account to view and retrieve their images at a later time from any Internet-connected computer. In addition, Photoshop.com Mobile for iPhone provides the ultimate digital photo wallet, giving users access to their entire Photoshop.com library directly from their iPhone. Photoshop.com offers 2GB of free online photo storage, which equates to over 1,500 photos

Source: Adobe

Google Earth Application Maps Carbon’s Course

Friday, October 2nd, 2009

From the Article:

Google Earth — the digital globe on which computer users can fly around the planet and zoom in on key features — is attracting attention in scientific communities and aiding public communication about carbon dioxide. Recently Google held a contest to present scientific results using KML, a data format used by Google Earth.

“I tried to think of a complex data set that would have public relevance,” said Tyler Erickson, a geospatial researcher at the Michigan Tech Research Institute in Ann Arbor.

[Snap]

The application is designed to educate the public and even scientists about how carbon dioxide emissions can be traced. A network of 1,000-foot towers across the United States is equipped with instruments by NOAA to measure the carbon dioxide content of parcels of air at single locations.

At the bottom of the article (in the related resources section) you’ll find more information including the actual Google KML file and a few videos.

Source: NASA News

If You’re a Google Toolbar Users Learn About SideWiki to Comment on Any Site

Wednesday, September 23rd, 2009

Danny Sullivan Writes:

Google Sidewiki is a new feature being added today to the Google Toolbar that allows anyone to leave comments about pages as they surf the web. Love something you’re reading? Hate it? You can share your views with others who visit the page and who also have Sidewiki enabled. Share, that is, if Google thinks your comment is good enough.

The post continues with a detailed explanation and screen caps.

Danny continues:

What comments are shown, and in what order? Google secret sauce time. The official line is this:

Using multiple signals based on the quality of the entry, what we know about the author, and user-contributed signals such as voting and flagging, we work hard to ensure that only the highest quality, most relevant entries appear in the sidebar. Most of the engineering work for Sidewiki was dedicated to this ranking algorithm.

When I talking with Google about Sidewiki, they gave me a few other factors, such as:
+ Use of sophisticated language: “This page sucks” isn’t sophisticated; think complex sentences and ideas. Apparently, Google has a language sophistication detector now, and one that works in the 14 different languages that Sidewiki supports.
+ User’s reputation: Are your comments being voted up or flagged down?
+ User’s history: How long have you had a Google Profile? How long have you been commenting?

Danny says that you can also share comments with people who do or do not use the toolbar.

From the Conclusion:

Sidewiki feels like another swing at something Google seems to desperately desires — a community of experts offering high quality comments. Google says that’s something that its cofounders Larry Page and Sergey Brin wanted more than a system for ranking web pages. They really wanted a system to annotate pages across the web.

Certainly Google’s goal is to be something more than another commenting system.

“I think we would have failed if people were using it to say ‘Obama sucks’,” said Sundar Pichai, vice president of product management at Google.

That’s not to say the system is meant to promote pro-Obama comments! Rather, the hope is to produce more intelligent and thoughtful comments regardless of a particular position about Obama or any other topic.

“If those are the comments we’re surfacing, [Sidewiki] wouldn’t be that much different than much of the web. What we’re really trying to do is add value from people who really know what they’re talking about,” he said.

Again, much much more in the full post.

Source: Search Engine Land

Sending Science Down the Phone: New Technology Will Map Research Across the World

Saturday, September 19th, 2009

From the ACM News Summary:

Research from Imperial College London scientists indicates that new smartphone software will help epidemiologists and ecologists in the field analyze data remotely and map findings across the globe. The study authors also say the software will allow the public to function as “citizen scientists” and gather data for community projects. The smartphone software lets users collect and record data, photos, and videos, and then transmit this material to a central Web-based database. The Web site uses the handset’s global positioning system to record the user’s location, and it can then display all the data collected on this subject across the world through Google Maps. The smartphones can additionally be used to request and see all the available maps and analyses. “This is the first time that we have been able to link all the functionality of smartphone technology to a Web-based database for scientists to use,” says lead study author David Aanensen. “Our software is ideal for projects where multiple people collect data in the field and submit these to a central Web site for mapping and analysis.” The researchers are currently using the software to assist in their analyses of the epidemiology of bacterial and fungal infectious diseases. Smartphones for the software employ the open source Android operating system, allowing software developers to create their own applications.

Access the Full Article (via Imperial College)

See Also: Research Paper: EpiCollect: Linking Smartphones to Web Applications for Epidemiology, Ecology and Community Data Collection (via PLoS One

Uptick: Microsoft Translator Adds Five New Languages

Thursday, September 17th, 2009

Microsoft Translator now translates 20 languages. According to this blog post, Czech (CSY), Danish (DAN), Greek (ELL), Swedish (SVE) and Thai (THA) became available last week. Here’s the complete list:

ARA – Arabic
CHS – Chinese Simplified
CHT – Chinese Traditional
NLD – Dutch
ENU – English
FRA – French
DEU – German
HEB – Hebrew
ITA – Italian
JPN – Japanese
KOR – Korean
PLK – Polish
PTB – Portuguese
RUS – Russian
ESN – Spanish
CSY – Czech
DAN – Danish
ELL – Greek
SVE – Swedish
THA – Thai

You will be able to translate between these languages in all Microsoft Translator powered services including Bing Translator, Internet Explorer Accelerator, Office, Widget as well as in our APIs.

Access Bing Translator (powered by Microsoft Translator)

Source: Microsoft Translator Official Team Blog

See Also: Please Translate That for Me (via Information Today)

Later Today: Live Webcast With Wolfram|Alpha Founder, Stephen Wolfram

Thursday, September 17th, 2009

Stephen Wolfram will be answering questions about W|A beginning at 2pm CDST/19:00 GMT.

If you have a question you’d like to ask Stephen, please send it as a comment to this blog post or tweet to @Wolfram_Alpha. We’ll also be taking questions live on the justin.tv chat during the webcast.

Streaming Video Will Be Available Here via justin.tv

Source: Wolfram|Alpha Blog

Digitization, Flickr, and Photosynth: Rome Was Built In A Day, With Hundreds Of Thousands Of Digital Photos

Wednesday, September 16th, 2009

From the Article:

The ancient city of Rome was not built in a day. It took nearly a decade to build the Colosseum, and almost a century to construct St. Peter’s Basilica. But now the city, including these landmarks, can be digitized in just a matter of hours.

A new computer algorithm developed at the University of Washington uses hundreds of thousands of tourist photos to automatically reconstruct an entire city in about a day.

The tool is the most recent in a series developed at the UW to harness the increasingly large digital photo collections available on photo-sharing Web sites. The digital Rome was built from 150,000 tourist photos tagged with the word “Rome” or “Roma” that were downloaded from the popular photo-sharing Web site, Flickr.

Earlier versions of the UW photo-stitching technology are known as Photo Tourism. That technology was licensed in 2006 to Microsoft, which now offers it as a free tool called Photosynth.

“With Photosynth and Photo Tourism, we basically reconstruct individual landmarks. Here we’re trying to reconstruct entire cities,” said co-author Noah Snavely, who developed Photo Tourism as his UW doctoral work and is now an assistant professor at Cornell University.

Source: Science Daily

+ Access and Use Photosynth (via Microsoft)

+ Various Photosynth’s of Rome

Carnegie Mellon researchers develop tool to rank death rates

Wednesday, August 26th, 2009

Carnegie Mellon researchers develop tool to rank death rates

Have you ever wondered what the chances are that you may die in the next year? Would it be from illness or an accident? Is it something you can control? Or is it completely out of your hands?

A new Web site, www.DeathRiskRankings.com, developed by researchers and students at Carnegie Mellon University, allows users to query publicly available data from the United States and Europe, and compare mortality risks by gender, age, cause of death and geographic region. The Web site not only gives the risk of dying within the next year, but it also ranks the probable causes and allows for quick side-by-side comparison between groups.

Suppose you wanted to know who is more likely to die next year from breast cancer, a 54-year-old Pennsylvania woman or her counterpart in the United Kingdom.

“This is the only place to look,” said Paul Fischbeck, site developer and professor of social and decision sciences and engineering and public policy (EPP) at Carnegie Mellon. “It turns out that the British woman has a 33 percent higher risk of breast cancer death. But for lung/throat cancer, the results are almost reversed, and the Pennsylvania woman has a 29 percent higher risk.”

“Most Americans don’t have a particularly good understanding of their own mortality risks, let alone ranking of their relevant risks,” said David Gerard, a former EPP professor at Carnegie Mellon who is now an associate professor of economics at Lawrence University in Appleton, Wis.

The researchers found that beyond infancy, the risk of dying increases annually at an exponential rate. A 20-year-old U.S. woman has a 1 in 2,000 (or 0.05 percent) chance of dying in the next year. By age 40, the risk is three times greater; by age 60, it is 16 times greater; and by age 80, it is 100 times greater (around 1 in 20 or 5 percent). “The risks are higher, but still not that bad,” Gerard said. “At 80, the average U.S. woman still has a 95 percent chance of making it to her 81st birthday.”

Source: Carnegie Mellon University (via EurekAlert)

Hat tip: PW

Resources of the Week: Useful! 10 Tools I Love

Monday, August 17th, 2009

Resources of the Week: Useful! 10 Tools I Love
By Shirl Kennedy, Senior Editor

Everyone loves lists. Everyone loves useful stuff. You will surely find at least a couple things to love right here, right now.

+ Online conversion tools for Adobe PDF documents: Convert PDF files to text or html. If the file is online, you provide a URL. If the file is on your hard drive, you e-mail it. In the day job, I often run into situations where I have to send PDFs to someone who is on a mobile device that can’t accommodate these. Copy-and-paste is OK if you’re only dealing with a small amount of text, but can become a formatting nightmare if a large document is involved. So…here is an alternative.

+ CPI Inflation Calculator from the Bureau of Labor Statistics: There are plenty of these scattered around the internets, but this one is simple, elegant and “right from the horse’s mouth.” Goes back to 1913. (In 1913, $100 had the same buying power as $2,175.26 in 2009. Wow.)

+ Universal Currency Converter: This one, from XE, has been around forever. I still love it.

+ Sized Up: I’m not wild about brick-and-mortar shopping, and I have limited free time anyhow…so I do a lot of online shopping. It’s useful when the dimensions of a product are included in its online description, but it can be difficult to visualize its actual size, particularly if you are not spatially-oriented. Here, you enter the product dimensions and compare it to a list of “presets” — objects everyone is familiar with, such as a credit card, a soda can, a sheet of paper, a door… Since the site has been around awhile, it has accumulated a ginormous database of user-generated product size comparisons; for example, here is Macbook versus Asus.

+ Tweet Blocker:

Tweet Blocker is a free resource for Twitter users and application developers. Using highly advanced filtering, we catalog and rank the top spammers on Twitter, allowing users to quickly and easily find spammers.

Twitter does its own clean-ups periodically, but this is a dynamic effort “across the Twitterverse.” You can drag and drop a “Report Spammer” bookmarklet to your browser bar. It’s not perfect, but it’s definitely worthwhile if you are a heavy Twitter user. Read more about it on Mashable and ReadWriteWeb.

+ Home Energy Saver, from the Environmental Energy Technologies Division at Lawrence Berkeley National Laboratory:

The Home Energy Saver calculator quickly computes a home’s energy use on-line based on methods developed at Lawrence Berkeley National Laboratory. Users can estimate how much energy and money can be saved and how much emissions can be reduced by implementing energy-efficiency improvements. All end uses (heating, cooling, major appliances, lighting, and miscellaneous uses) are included. A detailed description of underlaying calculation methods and data is provided a comprehensive report (PDF 6.2 MB). Documentation of how the site handles electricity tariffs is provided here (PDF; 974 KB).

A home energy “librarian” link takes you to a a comprehensive collection of related links.

+ Website Grader:

Website Grader is a free seo tool that measures the marketing effectiveness of a website. It provides a score that incorporates things like website traffic, SEO, social popularity and other technical factors. It also provides some basic advice on how the website can be improved from a marketing perspective.

ResourceShelf, we were pleased to learn, received a grade of 99/100 — which means our site scored higher (in terms of marketing effectiveness) — than 99 percent of the 1,221,867 sites that had previously been “graded” here at the time we ran our evaluation. The site report includes such interesting data as readability level (we are “graduate school”), Google page rank, number of Google pages indexed, last Google crawl date, traffic rank, number of inbound links, blog ranking (via Technorati), and number of pages saved as del.icio.us bookmarks.

+ How to Embed Almost Anything in your Website: This is not a “tool,” per se, but it’s Useful! It’s a comprehensive collection of instructions, with appropriate links, on how to embed RSS feeds, videos, mp3s, slideshows, Google Calendar events, MS Office files…and much more into web pages, including blogs. You’ll want to bookmark this one.

+ allofcraigs.com: For most people, Craigslist is at its most useful on a local level. You want to sell a couch or are looking for a house to rent. But what if you’re a serious collector of…say, Matchbox cars. Location doesn’t really matter. You can easily buy something small like this from someone across the country, who can ship it to you without a great deal of difficulty. But who the heck wants to hop from one local Craigslist to another, running the same search repeatedly? Come here instead, and search all craigslists at the same time. A dropdown menu allows you to pinpoint a category to search, and you can also limit by dollar amount and how long ago ads were posted.

+ Open Car Price: What are people really paying? Shopping for a new car? Here you can see “1000s of actual transaction prices and real quotes that people have received from dealers,” — and geographic location is noted — which helps you come up with a reasonable target price. You can register, submit quotes you’ve gotten from dealers, and get buying advice from the “community.” I spotted some quotes for late model used cars as well, so it’s worth checking here even if you’re buying pre-owned.