FORTUNE -- Paul Adams is one of Silicon Valley's most wanted. He's an intellectually minded product designer with square-framed glasses, a thick Irish accent, and a cult following of passionate techies. As one of Google's lead social researchers, he helped dream up the big idea behind the company's new social network, Google+: those flexible circles that let you group friends easily under monikers like "real friends" or "college buddies." He never got to help bring his concept to consumers, though. In a master talent grab last December, Facebook lured him 10 miles east to Palo Alto to help design social advertisements. On his blog, Adams explained, "Google values technology, not social science."
Click on the link below for more information ...... Facebook vs. Google: The battle for the future of the Web - Nov. 3, 2011