Dropbox says no evidence of hack in investigation of spam

Dropbox says its ongoing investigation into a possible security breach has not produced any evidence that its systems have been infiltrated.

Beeezzz

Tech's center of gravity shifts north to San Francisco

The venture capitalist Vinod Khosla recently described Silicon Valley as a state of mind, rather than a geographical place. If that's the case, that state of...

Bing and Google deepen social integration in search

Microsoft and Google are each taking steps to extend the social networking capabilities in their search services.

Will Marissa Mayer bring new life to Yahoo as CEO?

Yahoo's appointment of longtime Google executive Marissa Mayer as its new CEO is a bet on a strong, competent leader, though one without experience in the company's core businesses, according to analysts.

Skype glitch sends messages to the wrong contacts

Skype confirmed on Monday that a glitch in its software has led to instant messages being shared with unintended parties.

Yahoo, Facebook settle patent dispute

Yahoo and Facebook have settled a patent dispute, according to a statement Facebook released Friday afternoon.

Twitter bolsters search functionality

Twitter will bolster search functionality to automatically complete users' queries and suggest related search terms, among other improvements.

Google makes small changes to Google+ but shows social skills elsewhere

The company rolled out incremental improvements to its social network platform while adding social elements to its other offerings.

Zynga to roll out unified gaming platform, multiplayer gaming

Zynga announced Tuesday that it would build a social gaming network that provides a more unified gaming experience, whether players are on Facebook, iOS or Android devices.

Facebook ventures into social discovery with Find Friends Nearby

Facebook is testing a mobile-only feature, called Find Friends Nearby, that allows users to connect with new social contacts based on who is nearby and using a browser.

Android robot

Google will have to defend Android at I/O conference

As Google ramps up for its big I/O conference in San Francisco this week, analysts say the company must continue to prove the value of its Android operating system to developers.