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.
wikkawiki.org
A free PHP/MySQL wiki engine based on forked code from WakkaWiki, with a number of features beyond the original Wakka, including a GUI page editor, advanced syntax highlighting and mindmap support. Released under GPL.