Mark Zuckerberg and Facebook: What's Next?

Lesley Stahl Interviews Founder and CEO of Social Networking Site, Which Is Estimated To Be Worth $35 Billion

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If you have a Facebook account, you've probably reconnected with an old pal, shared photos with your family, and gotten advice from your friends on what to buy and what to read. It's pretty likely you logged on today.

Lately, the social networking site has been introducing new products - one after the next - with the goal, it seems, of turning the entire Web into one big social network, so eventually the Internet will be Facebook.

As if the company wasn't surging enough, the movie "The Social Network" about the creation of Facebook has heightened interest, especially in its 26-yr-old CEO, Mark Zuckerberg.

Now Facebook is about to get a facelift, and agreed to launch its new look on "60 Minutes."

Correspondent Lesley Stahl went out to Palo Alto, Calif. and sat down with Zuckerberg to discuss his creation, which is used today by a whopping 500 million people in 70 languages all around the world.

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When Lesley Stahl of "60 Minutes" interviewed Facebook founder Mark Zuckerberg, she was surprised to learn who he admires as a CEO. "60 Minutes Overtime" sat down with Lesley to hear what she learned about this young billionaire.

"When you first thought about this, 19 years old, is this what you had in mind? Did you see this far into the future? Or is it way beyond what you dreamed?" Stahl asked.

"Well, it's funny. When I was getting started, with my roommates in college, you never think that you could build this company or anything like that, right? Because, I mean, we were college students, right?" Zuckerberg said. "And we were just building stuff 'cause we thought it was cool. I do remember having these specific conversations with my friends where we thought, you know, someone is gonna build this. Someone is gonna build something that makes it so that people can stay connected with their friends and their family, but no way would we be the ones who were contributing to, kinda, leading the whole Internet in this direction."

But that's what he's doing - leading the whole Internet in his direction. In a non-descript T-shirt at a non-descript desk, Zuckerberg runs a vast global empire with the world's largest population after China and India.

Stahl first met him three years ago, at Facebook's old graffiti'd building in downtown Palo Alto. The company has since decamped to giant hangers nearby to accommodate their explosive growth. The graffiti is largely gone, except for one word you just can't miss.

"I see 'hack' everywhere: 'Hack,'" Stahl pointed out. "It has a negative connotation, doesn't it?"

"When we say hacker, there's this whole definition that engineers have for themselves, where it's very much a compliment when you call someone a hacker, where to hack something means to build something very quickly, right? In one night, you can sit down and you could churn out a lot of code, and at the end, you have a product," Zuckerberg explained.

Which is what he expects from his 500 engineers: as we walked through the Facebook offices, we got a sense of high-level competition, whether it's writing code into the night or taking breaks to play speed chess. It's a constant game of one-upmanship.

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Zuckerberg told Stahl about the company's "hackathons."

"Hackathons are these things where just all of the Facebook engineers get together and stay up all night building things," he said. "And, I mean, usually at these hackathons, I code too, just alongside everyone."

As he spoke, Stahl remembered his awkwardness from three years ago, and how he rarely blinks. But he's far more relaxed now, easier to smile, and noticeably more confident, as he tells you about all the new products they keep launching.

On Monday, Dec. 6, the company will launch a new layout for the heart of the site: every user's profile page.