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.
RDF Gateway by Intellidimension
A semantic query service for distributed data. The gateway gives applications the ability to perform powerful deductive queries across multiple sources of structured data. Applications interface with the gateway through a simple, SQL-style language (RDFQL) that supports the model and syntax of RDF.