Yahoo sells Kelkoo to U.K. private-equity firm

Yahoo Mail's social upgrade suffers a burp
Some users hit by glitch in Yahoo's new socially connected version of its online mail service.

Yahoo shows ads in IM chat windows
Under fierce financial pressure, the Internet pioneer is testing some new real estate for advertisements.

Yahoo to purge user data after 90 days
Clearly, the race is on to the bottom on data retention policies. In particular, Google and Yahoo have been playing a game of privacy leapfrog.

Year in review: The Microhoo saga
With no Microsoft deal, the beleaguered Yahoo slams the door on a dramatic 2008 and throws away the key.

Images: Yahoo turns on Open Strategy
Yahoo is adding applications and a social dimension to some of its most important Web properties. Here's a guided tour.