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.
www.pligg.com
An open source social content management system (CMS) that creates an interactive website where users have the power to submit, vote, and talk about the news that is important to them. (PHP,MSQL)