Fat Lady Finally Sings: Yahoo and Alibaba Officially Shake on $7 Billion Stock Sale Deal [UPDATED]  —  As AllThingsD.com reported several days ago they would, Yahoo and Alibaba Group have finally reached an agreement for the Silicon Valley Internet giant to sell back half its stake in the Chinese Web company in a $7 billion deal.

Microsoft quietly launches So.cl social network  —  In the wake of social-networking giant Facebook's IPO, Microsoft has quietly launched So.cl, its own social networking foray.  However, So.cl isn't a designed to be a Facebook challenger.  The project, the details of which leaked out last year …

Nasdaq Acknowledges Troubles With Facebook Deal  —  Robert Greifeld, chief executive of Nasdaq OMX Group Inc., on Sunday acknowledged design problems with Nasdaq's technology after the exchange operator was widely seen as bungling the landmark listing of shares of Facebook Inc. on Friday.

'The Golden Age of Silicon Valley Is Over, and We're Dancing on its Grave'  —  To help make sense of the Facebook IPO, we caught up with Steve Blank, a professor at Berkeley and Stanford and serial entrepreneur from Silicon Valley.  This conversation has been edited and condensed.

Apple, Samsung CEOs set for U.S. court talks  —  (Reuters) - The chief executives of Apple Inc and Samsung Electronics Co Ltd are used to running the show at their global tech empires, but they will be in for a different experience when they arrive at a San Francisco federal courthouse on Monday.

TomTom Seeks New Direction  —  Navigation-Tool Maker is Trying to Reposition Itself as a Mapping-Software and Services Provider  —  Many drivers have used satellite-navigation devices from Dutch navigation-system maker TomTom NV to get where they're going with the minimum of fuss.

The Undoing of Scott Thompson at Yahoo  —  When the activist shareholder Daniel Loeb confronted Yahoo's directors on May 3 with the possibility that Yahoo's recently hired chief executive, Scott Thompson, might have falsified his résumé by claiming to have a computer science degree, their initial reaction was disbelief.

Facebook's Mark Zuckerberg weds on day after IPO  —  A day after the historic Facebook IPO, founder and CEO Mark Zuckerberg updated his status Saturday to “married.”  Zuckerberg wed 27-year-old Priscilla Chan, his girlfriend of nearly a decade, according to a guest authorized to speak for the couple.

Report: Pakistan Blocks Twitter Over Blasphemous Content, Facebook Complies?  [Update: Back Up]  —  Another day, another example of a country making it harder for its people to use the web and some of its most effective channels of communication?  There are reports coming in from Pakistan …

Voyager Mobile, a 22-Year-Old's Cellphone Start-Up, Launches After Delay  —  An attack on his Web site pushed things out a few days, but John Mardini says Voyager Mobile is now ready to take orders for cut-rate cellphone service.  —  Mardini, a 22-year-old entrepreneur and New York University student …

Facebook vs. Twitter  —  The best way to compare Twitter and Facebook is to look at the old children's story The Tortoise and the Hare.  —  For those that don't remember curling up in bed as a child, listening to an adult narrate it, this is the old fable of an arrogant hare who loses a race to a slow tortoise.