Recently Posted Research Papers by Googlers

+ Robust Music Identification, Detection, and Analysis
by Mehryar Mohri, Pedro Moreno, Eugene Weinstein, Proceedings of the 8th International Conference on Music Information Retrieval (ISMIR 2007).
Might give some insight into how Google identifies material on YouTube. A very technical paper but the intro and conclusions can be of value to the non-geek.

+ Full Text Not Yet Available:
++ Paper Interface to Electronic Medical Records: A Case of Probing for Platform Requirements,
by Elin Rønby Pedersen and Greg Wolff
Google and Kraka Inc.

+Full Text Not Yet Available:
++ Relating Documents via User Activity: The Missing Link
by Elin Rønby Pedersen and David W McDonald
IUI 2008, Intelligent User Interfaces (to appear).