Michael is currently a full-time partner at Y Combinator. Previously, he was a co-founder and CEO of Justin.tv from 2007 - 2011 and the co-founder and CEO of Socialcam in 2012. During 2012, Socialcam participated in Y Combinator, raised angel financing from a group of amazing investors, and sold to Autodesk Inc. for $60m (link). Needless to say - it was a busy year. In 2014 Justin.tv became Twitch Interactive and under the leadership of Emmett Shear and Kevin Lin sold to Amazon for $970m.