Facebook's third-most popular widget, Slide's Top Friends, is back after Facebook suspended it on June 26. (The offense: displaying Top Friends' users birthdays and other private information that wouldn't normally be visible on Facebook.) What took so long? Following the suspension, Slide wanted to call its apps the most secure on Facebook. To feel comfortable doing so, it contracted a third-party audit firm to review its applications and source code, Slide exec Keith Rabois told us. "The issue with Top Friends was fixed immediately," Rabois told us, "But as you might imagine an independent audit takes time to perform." Elsewhere on Facebook, Slide's privacy troubles seem to be spreading.

Barry Diller's IAC began talks to acquire Flixster, but then dropped the idea as soon as the two-year-old, 17-employee company priced itself at $150 million, according to Boom Town. And it seems IAC isn't the only one saying no. Execs from Viacom's MTV Networks gave Flixster a look, but also decided the price was too high. Flixster's Facebook application, Movies, claims 804,748 daily active users, a milestone achieved with just $2 million in funding from Lightspeed Venture Partners. So what's keeping buyers so shy, besides the lofty price?

Rumor has it Flixster is for sale and it wants $150 million. Not going to happen if the company doesn't clean up its Facebook act — or app, rather A tipster sent in this screenshot from his Facebook News Feed. It's a "story" from his Flixster app, and the glands it portrays put it in clear violaltion of Facebook's platform application guidelines. Be warned, what follows is a rare explicit depiction of the female chest.

A tipster has leaked us these screen shots of how Marc Andreessen and company plan to integrate Google's OpenSocial platform into Ning. Make sure you're sitting down. We've got a ninja.