Founded the world's largest online encyclopedia, Wikipedia, in 2001. Despite his world famous internet entrepreneurship, unlike his peers, he hasn't made vast amounts of money out of his creation.

Wikipedia is built as a wiki allowing users to collectively create, add and edit content.  By 2013 it had over 24 million entries and relied on more than 80,000 volunteers (referred to as the community) to maintain the site.  It also received over 20 billion page views a month from around 516 million visitors.  It is the 6th most visited website in the world.

Known as the B.D.F.L. (the Benevolent Dictator for Life) in the Wikipedia community whose role it is to settle disputes over entries.

One of TIME Magazine’s “100 Most Influential People”