While crashing Twitter and maxing out the company's live video feed to the point that it skipped and shuddered, Facebook CEO Mark Zuckerberg and his team rolled out three new components of Facebook.

One stood above the rest: a reimagining of social groups on the Web's biggest social network.  The core idea is that users can create flexible, private groups which will be able to share private space with document sharing and group chat.

"Often times you don't want to post something to all your friends, not because he don't want them to know but because you don't want to annoy all of them," Zuckerberg said.  

Although Facebook Lists had been created as a way to solve that problem, the Facebook CEO said only 5 percent of users make lists.  

Thus, Groups will be introduced as evolving social "spaces" that "take the way the real world works and apply it to Facebook."

The plan is that Groups will serve as open and transparent places where people who trust one another can have intimate conversations, share information, and make decisions.

Related to this reimagining of Facebook's social graph is a better way to manage privacy settings, giving users more control about who can see what (including apps), as well as a new service that lets users pull their data out of Facebook and do whatever they want with it.

Zuckerberg said that the problem of creating and maintaining authentic social groups has been a tough nut to crack, but is confident that his company has done it.  

"If it were purely an algorithmic problem, some other company would have solved it. But it's a social problem, and that's why we solved it," he said.

Groups will be dynamic in that any member can invite another, an action the entire group will see immediately.   By using human power instead of an algorithm, Facebook's product designers hope to avoid the "collision of fragmented spaces and audiences" the average person sees in his or her News Feed.

As it finds new ways to mimic the real human experience, Facebook draws its members further into its site, which is now the most trafficked Web site in the United States.