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.
gloox
A portable C++ Jabber/XMPP library which takes care of the low-level protocol stuff. Additionally, it offers high-level interfaces for interaction with an XMPP server. [Open Source, GPL]