This is a guest post by Mark Suster, a 2x entrepreneur who has gone to the Dark Side of VC. He started his first company in 1999 and was headquartered in London, leaving in 2005 and selling to a publicly traded French services company. He founded his second company in Palo Alto in 2005 and sold this company to Salesforce.com, becoming VP of Product Management. He joined GRP Partners in 2007 as a General Partner focusing on early-stage technology