Evan Williams, Jack Dorsey's partner, started the website ''Blogger'', which he sold to ''Google''.
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Dick Costolo became CEO in 2010. He was formerly a [[Google]] executive.<ref name=wsj>{{cite news|title=Beyond Tech Geeks and Narcisssists: Twitter Aims to Boost Site's Utility|work=Wall Street Journal|first=Shira|last=Ovide|date=July 24, 2012|page=B1}}</ref>
[[File:Twitter office space.jpg|thumb|Twitter office space (Photo by Jennifer Woodard Maderazo).]]
[[File:Twitter office space.jpg|thumb|Twitter office space (Photo by Jennifer Woodard Maderazo).]]