Jimmy Wales is the co-founder of the online encyclopedia Wikipedia, along with Larry Sanger and others. Wikipedia succeeded an earlier attempt at an encyclopedia called Nupedia, but Nupedia grew slowly because of its onerous submission format, which required articles to be peer reviewed. Sanger was then introduced to the concept of a wiki, and thus Wikipedia was born. Wales continues to serve on the Board of Trustees of the non-profit Wikimedia Foundation, and he also co-founded Wikia, a for-profit wiki hosting site.Photo: Manuel Archain