Vinod Khosla, Silicon Valley's most prominent "green" venture capitalist, announced today that former British Prime Minister Tony Blair is joining Khosla Ventures as a senior adviser. The announcement, made at a small invitation-only gathering at the picturesque Cavallo Point Lodge in Sausalito, adds international star power to Khosla Ventures. Since leaving office, Blair has focused on climate change, energy security and public policy and is one of the world's most eloquent advocates for the environment. "I'm absolutely thrilled, honored and delighted to team up with Vinod and the people he has working for him," said Blair today. "Vinod is one...