The trouble with online gambling is the tangle of laws and regulations that surrounds it. Every country has their own rules, and most importantly, the United States forbids winning real money through online gambling. A company named Betable seeks to make online gambling in social games a real thing by creating a network between the game and the money that will take care of all the legal troubles while being invisible to the player. VentureBeat has the story.
Given the sort of Pavlovian automatons who populate the social gaming scene, this whole scheme is actually sort of frightening. You might as well just send someone around to their homes to take all their stuff and sell it off for game credits right on the front lawn.