Hi everyone!
We have done interesting research on Wikipedia mining.
There are two posts in my blog on the results of this research "Analysis of Community Structure in Wikipedia" : http://mint.typepad.com/blog/2009/05/poster-analysis-of-community-structure-in-wikipedia-at-www2009.html
and "Using Amazon Mechanical Turk to Extend Wikipedia Base" http://mint.typepad.com/blog/2009/05/using-amazon-mechanical-turk-to-extend-wikipedia-base.html
Maria Grineva
Institute for System Programming of Russian Academy of Sciences