Just because you added your boss to your network of friends on Facebook doesn't mean you want him/her to see what you did over the weekend. Same holds true for your Aunt Mabel. To address this, Facebook has revamped its Groups feature so you can be more selective over who sees what.

"Today we're announcing a completely overhauled, brand new version of Groups," Facebook founder Mark Zuckerberg announced in a blog post. "It's a simple way to stay up to date with small groups of your friends and to share things with only them in a private space. The default setting is Closed, which means only members see what's going on in a group.

"From this space, you can quickly post photos, make plans, and keep up with ongoing conversations. You can also group chat with members who are online right now. You can even use each group as an email list to quickly share things when you're not on Facebook."

Hit the jump to learn what else is new.

The reviews are in, and The Social Network didn't have much trouble finding friends at the box office. It was the No. 1 movie this past weekend, pulling in a respectable $23 million.

The Social Network is a dramatization about the founders of the world's most popular social networking website, Facebook. Hollywood definitely took some liberties in adding spice to how events really played out, and in doing so, director David Fincher brought out a brilliant performance from actor Jesse Eisenburg, who portrayed the face of Facebook, Mark Zuckerberg.

"It really is a great start for us. This is a move that is resonating everywhere. The reviews are the best I've seen at our studio in my career," said Rory Bruer, head of Sony Distribution to the AP. "It's just one of the movies that critics and audiences alike are embracing, and I think it's going to have a tremendous life."

The movie delves into Zuckerberg's legal dealings with his best friend Eduardo Saverin (Andrew Garfield) over millions of dollars Saverin claimed he was cheated out of, as well as with three other Harvard students who accused Zuckerberg of stealing their idea.

There's a fair amount of nerd speak in the beginning, particularly as Zuckerberg hacks into Harvard's PCs to swipe student pictures for a separate project, so it's not the ideal date movie (try You Again if you're looking to score some brownie points and catch Betty White before the Grim Reaper does). But it is worth watching, even if Nancy Doyle Palmer at The Huffington Post disagrees.

Following an outpouring of support and "several" buyout offers, Xmarks is reconsidering shutting its servers down on January 10, 2011. According to James Joaquin, CEO of the cross-browser syncing service, many users wrote in claiming they would be willing to pay for Xmarks. Ready to prove it?

"We're revisiting the idea of Xmarks as a premium service," Joaquin wrote in a blog post. "We've set up a Pledgebank page where you can sign up if you're willing to pay at least $10 a year for Xmarks. No credit card is required, but please only pledge if you are genuinely willing and able to pay."

Joaquin insists that charging users for his syncing services was never part of the original strategy, but giving the number of encouraging emails, he's willing to entertain the idea. But here's where things get tricky. Joaquin says it costs over $2 million a year to run Xmarks, with $9 million already invested to create the technology and grow the data corpus. If 2 percent of the two million Xmarks users would be willing to pony up $10/year, that would only amount to $400,000 of annual revenue.

Nevertheless, Joaquin isn't giving up.

"The overwhelming positive user support from all of you, combined with strong interest by companies looking to take over Xmarks, means that the service might just find a ninth life. Please stay tuned," Joaquin said.

If you want to pledge, head over to www.pledgebank.com/XmarksPremium. The deadline to do so is October 15, 2010.