- Founder and Chair Emeritus, Board of Trustees, Wikimedia Foundation, USA
Founder and Chair Emeritus, Board of Trustees, Wikimedia Foundation, the non-profit corporation that operates the Wikipedia free online encyclopaedia and several other wiki projects. Founder, Wikia.com. 2014, appointed Co-Chairman, The People's Operator, a UK-based mobile operator that enables the user to donate 10% of their phone bill to a cause of their choice without paying more for their phone plan in order to do this. Named one of 100 Most Influential People in the World, Time Magazine (2006).