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.
TWiki - the Open Source Enterprise Wiki and Web 2.0 Application Platform
Heavily featured variant, with revision control, templates, category tables, authorization based on groups, automatic email notification of changes, file attachments.