The youngest partner at one of the world's oldest venture capital firms. Working from his perch in Larchmont, New York, Levine has led early investments in some of the hottest Web 2.0 properties. He invested in Yelp back in 2005, when the local reviews site could claim only 100,000 San Franciscans as users. That led to similar investments in LinkedIn—now worth a nice 5% pre-IPO stake –and wiki farm site Wikia. Levine also led BVP's investment in Gracenote (sold to Sony for $260 million in 2008), hot private e-commerce outfit Quidsi (sold to Amazon for $545 million), MindBody (management software for yoga studios), Convertro (conversion tracking for media mentions) and others. Levine got his start at internet-software publisher Dash, and writes regularly for his investment blog "Nothing Ventured, Nothing Gained."