Gurbaksh Chahal, the egomaniacal entrepreneur who sold ad startup BlueLithium to Yahoo for $300 million in cash, has been pumping up his acting career. And his body. A new shirtless picture is up on his site. We hear that's the result of training with Tom Austin, a San Jose-based bodybuilder who's appeared in gay porn videos such as "Minute Man 24" (NSFW, or for men uncomfortable in their heterosexuality) as Bo Dixon. (Some suggest Austin offers other services as well.) Good work, Gurbaksh! Which raises a question: