In its quest to be everything to everyone and not just another social media service, Facebook Inc (NASDAQ:FB) is currently testing a virtual assistant service powered by artificial intelligence, which will be used inside its messaging app and possibly other services. The service debuted Thursday morning on a select number of phones belonging to San Francisco denizens. Facebook Messenger executive David Marcus opened up about the service, which was dubbed "M," claiming it will assist with a variety of actions, including purchases, gift deliveries, and setting up appointments. Facebook M takes competition a step... More