Groupon shares took a nosedive Wednesday after the online deals giant surprised markets by reporting fresh losses in the past quarter and a weaker-than-expected outlook.
Google's Chairman Eric Schmidt plans to sell 3.2 million "A" shares, currently worth $2.5 billion, over the next year, Google said Friday in a filing with the Securities and Exchange Commission.
One-third of computers sold worldwide in the fourth quarter of 2012 were tablets, according to a survey released Wednesday.
Zynga, the struggling social games pioneer, showed signs it is getting a grip on spending with an earnings report Tuesday revealing narrowing losses, which sparked an after-hours rally in shares.
Facebook-owned Instagram on Tuesday began letting a freshly launched website serve as a gallery for images taken by users of the smartphone photo-sharing service.
Shares of Facebook are pushing above $30 for the first time since July after it sent out invitations to "come and see what we're building" Tuesday at its headquarters in Menlo Park, Calif.
Facebook shares fell Friday after a report said its photo-sharing app Instagram had lost millions of users following the release of planned policy changes since dropped on an outcry from users.
US authorities are probing allegations by Hewlett-Packard that a British software firm it bought out had fraudulent accounts, the US tech giant said in its annual report released Thursday.
Facebook said Wednesday it is halting a test of placing ads in "apps" that synch to the leading social network, renewing questions on how it will boost revenues from members using smartphones or tablets.