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.
librdf.org
A set of free software C libraries that provides an implementation of the RDF model, allowing it to be manipulated, queried and stored via APIs in Perl, Python, Tcl and Java.