Like? Facebook Has Some Uneasy About Privacy

Facebook founder Mark Zuckerberg is not one to dream small. With 800 million users, Zuckerberg has built an empire out of people sharing photos, status updates and much, much more.

Lately, Zuckerberg has his eyes set on that "much, much more" part.

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"This is the first thing I want to show you today," Zuckerberg told the crowd at a Facebook developers conference in September. "We've been working on it all year and we're calling it, 'Timeline.' 'Timeline' is the story of your life."

Your life — on Facebook. Birth, travels, marriage — all on the big online profile.

For many, that may just be putting a name to something they already know and like. For others? Well, it just might give them the willies.

Social media is evolving faster than we can wrap our heads around it. So this new Facebook feature strikes some as just another step forward in the blending of our lives on and off line. But for others, the prospect of Facebook controlling such vast amounts of private information, especially when people may not realize how much they're sharing, makes Facebook — with its 800 million users — the biggest Big Brother on the block.

So, how open should a new "open world" be?

Guests: