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.
llvm.org
Explicit
An aggressive open-source compiler for C and C++ and Stacker, a forth-like language. It specializes in interprocedural optimization and analysis, and handles runtime and offline optimization "in the field" as well.