Pakistan blocks Twitter access over "blasphemous content" ISLAMABAD (Reuters) - Pakistan on Sunday blocked access to Twitter in response to "blasphemous" material posted by users on the microblogging and social networking website, a senior government official said. Google gets China OK for Motorola deal Authorities in China have approved Google Inc.'s bid to buy phone maker Motorola Mobility, clearing the way for the $12.5 billion deal to close early next week. Questions and answers on blockbuster Facebook IPO Taking a company public isn't as simple as collecting Facebook friends. Intelsat Global files for $1.75 billion IPO (Reuters) - Intelsat Global Holdings S.A., the world's biggest operator of satellite services, filed with U.S. regulators on Friday to raise up to $1.75 billion in an initial public offering of its common stock. GM passes on running TV ads during 2013 Super Bowl DETROIT (Reuters) - General Motors Co will not advertise in next year's Super Bowl because it is too expensive, the top marketing executive for the U.S. automaker said three days after the company announced it was dropping paid ads on Facebook Inc. A look at how some IPO stocks have fared Facebook raised $16 billion in its initial public offering Thursday, pricing its stock at $38 per share. Its public debut was the most anticipated tech IPO since Google went public in August 2004. After an anxiety-filled half-hour delay, shares began trading Friday on the Nasdaq Stock Market. They closed almost unchanged, at $38.23. Beyond Facebook: A look at social network history Facebook may have made social networking a worldwide cultural phenomenon, but it wasn't the first Internet company to connect people online. And it won't be the last. Here's a look at how social networking has evolved. Some companies have come and gone. Some are mere shells of their former selves. And others show promise, even as Facebook dominates the social Web. Social media stocks tumble on tepid Facebook IPO The lukewarm response to Facebook Inc.'s initial public offering sent shares of other social-media companies tumbling Friday. American Eagle exits children's shops, CFO resigns (Reuters) - Teen apparel retailer American Eagle Outfitters Inc <AEO.L> said it is getting out of the children's clothing business and that Chief Financial Officer Joan Hilson will step down at the end of July.