• Bearish on Apple's Stock: Pro  Tuesday, 15 Jan 2013 | 5:20 PM ET

    Ben Lichtenstein, President, Tradersaudio.com is bearish on Apple's stock. He says it is overweighted on the Nasdaq and is a bad representation of the market.

  • Mark Zuckerberg, chief executive officer and founder of Facebook, at its headquarters in Menlo Park, Calif.

    Facebook is poised to cash in on the search market, says Lou Kerner, managing director for the Social Internet Fund.

  • Dow Logs 4-Day Win Streak; Apple Falls to 11-Month Low Tuesday, 15 Jan 2013 | 5:01 PM ET
    A Barclays PLC trader holds a hand to his face while working on the floor of the New York Stock Exchange (NYSE) in New York, U.S.

    The Dow and S&P 500 finished higher Tuesday, but gains were limited as further losses for Apple weighed on the tech sector and as investors hesitated to jump in ahead of some major earnings reports in the coming days.

  • After-Hours Buzz: DELL, GM & More Tuesday, 15 Jan 2013 | 4:52 PM ET

    Check out which companies are making headlines after the bell Tuesday:

  • Facebook Announces 'Graph Search'  Tuesday, 15 Jan 2013 | 3:25 PM ET

    Facebook CEO Mark Zuckerberg just unveiled "Graph Search," which enables users to search people, places, interests and photos, reports CNBC's Julia Boorstin. Lou Kerner, Social Internet Fund and Ben Parr, CNET, share their opinions on the non-web search.

  • Facebook's "Graph Search" allows users to search for people, places, photos and interests, reports CNBC's Julia Boorstin. John Abell, Reuters MediaFile columnist and Jordan Rohan, Stifel Nicolaus, provide perspective.

  • Facebook Announces Partnership With Microsoft  Tuesday, 15 Jan 2013 | 1:52 PM ET

    CNBC's Scott Wapner reports Facebook has announced a partnership with Microsoft. David Kirkpatrick, author of "The Facebook Effect," weighs in.

  • Facebook's 'Graph Search' Moving the Stock  Tuesday, 15 Jan 2013 | 1:28 PM ET

    Facebook shares are selling off on its "graph search" announcement, with David Fitzpatrick, author of "The Facebook Effect, and the CNBC's "Power Lunch" crew.

  • Facebook Unveils Its Next Big Thing: Social Search Tuesday, 15 Jan 2013 | 1:24 PM ET
    Facebook's new Graph Search icon

    Facebook's big announcement was ... a social search feature that will allow users to search their friends' content.

  • Facebook's Closed Social Search  Tuesday, 15 Jan 2013 | 1:22 PM ET

    CNBC's "Power Lunch" crew discusses Facebook's closed social search, and what it means for the stock.

  • Facebook volume surges as the company announces its new social search, with David Kirkpatrick, author of "The Facebook Effect."

  • Facebook Announces 'Knowledge Graph Search'  Tuesday, 15 Jan 2013 | 1:12 PM ET

    Scott Wapner has the breaking news on a highly-awaited announcement from Facebook. (2:17)

  • Facebook's new Graph Search icon

    Facebook's Mark Zuckerberg unveiled the social media giant's next big idea -- social search. Would he ever work with Google? Here's what he had to say.

  • Facebook's Announcement Any Minute  Tuesday, 15 Jan 2013 | 1:02 PM ET

    David Kirkpatrick, author of "The Facebook Effect," says Facebook could be announcing something to do with mobile or search.

  • Facebook Missing Opportunities: Porter Bibb Tuesday, 15 Jan 2013 | 12:51 PM ET

    Expect Facebook's mystery announcement to disappoint, venture capitalist Porter Bibb says.

  • Facebook's Missing Opportunities: Porter Bibb  Tuesday, 15 Jan 2013 | 12:20 PM ET

    Expect an "underwhelming announcement" from Facebook, Porter Bibb of Media Tech Capital Partners says.

  • Facebook Rises Ahead of Event  Tuesday, 15 Jan 2013 | 12:15 PM ET

    In just under an hour, Facebook will unveil what it's been "building," reports CNBC's Julia Boorstin; and its stock is up nearly 60 percent over the past 3 months, with Porter Bibb, Media Tech Capital Partners.

  • What's Behind Facebook's Big Reveal?  Tuesday, 15 Jan 2013 | 11:56 AM ET

    Dennis Berman, Wall Street Journal, provides a look at what Facebook could possibly be up to now.

  • Prepare for a Big Letdown From Facebook, Analyst Says Tuesday, 15 Jan 2013 | 11:39 AM ET
    Facebook sign in Menlo Park, California.

    Facebook's mystery announcement on Tuesday may not live up to its advance billing, one analyst told CNBC on Tuesday.

  • Facebook's Big Unveiling  Tuesday, 15 Jan 2013 | 11:04 AM ET

    CNBC's Julia Boorstin reports CEO Mark Zuckerberg is expected to take the stage at Facebook's mystery event. Also, a look at closet indexing and Facebook, with CNBC's Gary Kaminsky.