Jimmy Donal "Jimbo" Wales is the founder of Wikipedia and Chair Emeritus of the Wikimedia Foundation.
He is currently learning german and says "I like getting simple messages from people in German, but unfortunately I'm not quite ready yet to conduct real conversations in German.".
Of course he takes part in all of the wikipedia meetups.
Here is his statement of principles and these are his contributions to the english Wikipedia.
Jimbo also runs his business Wikia Inc. which offers free Mediawiki Wikis which are financed via commercial ads. ->
Jimbo Wales userpage on en.wikipedia
TIME.com article about Jimmy Wales
Related: http://meta.wikimedia.org, http://www.wikia.com
Wikiquotes - Quotes by Jimmy Wales