Last week, a new open protocol called OExchange was released with the aim of simplifying sharing. Right out of the door, it had names like Google, Microsoft, and LinkedIn signed on. WebProNews spoke with Google's Open Web advocate, Chris Messina about how the protocol could benefit businesses and site owners. "There are a couple different ways to look at this as a website owner," he told us. "If you already use a sharing service like AddToAny, ShareThis, or AddThis,