Twitter Game Makes Money for the Mob

Twitter's founders still haven't decided how to cash in on their popular Internet messaging service -- to the delight of a rapidly growing audience. However, the deliberate approach may not prevent a gold rush among opportunistic outsiders. Lolplaying, the maker of a new role-playing game on Twitter called "140 Mafia," is trying to explore Twitter's moneymaking potential with Super Rewards, a "virtual currency" service that already has been reaping revenue from various forms of online recreation