peHUB Second Opinion

Causing a Rift: New memoir from Paul Allen causes problems with his buddy, Bill Gates. Shocker: David Sokol, a major contender to succeed Warren Buffet at Berkshire Hathaway, has resigned. +1: Google launches its answer to Facebook's like button. Just Do It: Japan weighs pouring concrete over crippled nuclear plant. Moving Up: Why escalators bring out the best in people. A Housewarming: Finally, we have some pics of Yuri Milner's new $100 mln Silicon Valley digs. Ousted: Orbitz is dropping Alamo and National Car Rental after contract talks fail.