http://blog.wikimedia.org/category/wikimania/
We also want to thank all of our sponsors this year. Without them we couldn’t pull events like this together: Telefonica, Terra, Speedy, The Richard Lounsbery Foundation, Answers.com, Kaltura, Wikimedia Deutschland, The Government of the City of Buenos Aires, Open Society Institute, wikiHow, Wikia, and Banco Credicoop. Thank you!
Note the web url here:
http://www.soros.org/initiatives/information/focus/access/events/wikimania_20080717
Wikimania 2008: The International Wikimedia Conference
Wikimania is an annual global event devoted to Wikimedia projects around the globe (including Wikipedia, Wikibooks, Wikisource, Wikinews, Wiktionary, Wikiversity, Wikiquote, Wikispecies, and Wikimedia Commons) and for its editors and users to gather, meet each other, exchange ideas, and report on research and projects.
And wikimania 2006:
http://wikimania2006.wikimedia.org/wiki/Main_Page
Bottom of the page the sponsors are thanked. OSI is one of them.
That makes sense; I was wondering why Wiki labeled ‘Patriot Movement’ as a terrorist org. I tried to correct the posting but the wiki overlords wouldn’t let me.