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.
Dia - GNOME Live!
A diagram creation tool that supports UML modeling and runs primarily on Linux but also Windows and Irix. The interface is similar to the commercial Microsoft Visio. [Open Source, GPL]