Ad Targeting:

• Google AdSense now uses hours of search history.

Mobile Computing:

• These tablets do what the iPad don't.

• Mobile companies unite to take on Apple's mighty app store.

Social Media:

• Facebook could transform mobile phones.

• Can virtual roses smell just as sweet on Valentine's Day?

• Social media could get athletes too fired up.

• Some signing off social networking.

Smartphones:

• Microsoft aims to get back in the smartphone game.

• Different tones at Mobile World Congress.

Search:

• Bing: spatial search is the next frontier.

• Report: EU to approve Microsoft-Yahoo search deal.

• Google takes on Yellow Pages with enhanced local search.

Web 2.0:

• 10 reasons why a Google fiber network could reshape the ISP landscape.

• 5 reasons Silicon Valley might stumble coming out of recession.

Privacy:

• Google again revises privacy settings of Buzz.