Venture capital firm Benchmark Capital, which has funded MMO studio Red 5 and Second Life creator Linden Labs, has announced that former Xfire CEO Mike Cassidy has joined the firm as an Entrepreneur in Residence, leaving the game instant messenging firm he sold to Viacom/MTV in April 2006 for $110 million. Cassidy has co-founded, served as CEO, and led three consumer Internet companies to ...