Male Movie Stars Nude! NSFW
It seems like it involves clicking and registering and joining and paying and stuff like that, so I'm hardly recommending it, but a friend--yeah, a friend--said it was worth it for him.
Included, allegedly, are nude shots--whether work-related or personal--of studlets like Joseph Gordon-Levitt, Ashton Kutcher, Mario Lopez, Matt Bomer, and many more. (Some of the photos are apparently fanciful, but then so is celebrity itself, isn't it?)
Happy birthday to all these guys. Love the suits they're wearing.