Here is search logs of 650,000 AOL users. It's very interesting to view search history of particular person and analyze his personality. Let's do it together! Read more about AOL search database scandal or view research papers on web searching.
proguard.sourceforge.net
Shrinks and obfuscates, with template-based configuration. Comes with an Ant task, a J2ME WTK plugin, and a tool to de-obfuscate stack traces. [Open source, GPL]