A start-up offers random video chats similar to Chatroulette, but limits the pool to college students.

Responding to two Apple patent lawsuits, HTC says its touch-screen technology predates the iPhone.

American companies with factories in China are now building high-tech research labs there as well.

Turning a one-bedroom apartment into a push-button kingdom in which the heat, the locks and the music can be controlled with a touch.

You could pay $20 or follow these steps to get more space in Gmail.

The Seagate FreeAgent Theater+ provides an easy and reliable way to stream video and music from your PC to your HDTV.

There are several iPhone apps that allow users to follow Major League Baseball games in excruciating detail.

As Apple builds its electronic bookstore, Amazon is trying to use its clout to hold on to its early lead in the market.

The museum collaborated with an auction Web site to mount a major show with the intention of selling its contents to the highest bidders.

Two men were accused of developing the computer programs used in the fraudulent investment-advisory business.

A letter demanding that Google compensate advertising agents if it withdraws from China probably is not genuine.

A platform called Google TV will bring the Web into the living room through televisions and set-top boxes.

A federal appeals court ruled that parents could block the prosecution of their children on child pornography charges for appearing in photographs found on classmates’ cellphones.

A new phone earpiece strives to be smaller and more stylish than its predecessors. Does it succeed?

The impact of the SXSW conference: Twitter breathalyzers, sexism on Twitter and Foursquare's success?

The Tech Talk podcast covers recycling a hard drive and solving problems with Flash.

The online payment company PayPal would continue to grow if its parent, eBay, let it leave the nest.

The German software company, ridiculed for missing deadlines in the past, says it has embraced speedy software development to get back on track.

Yahoo has developed a crowdsourcing tool to predict bracket winners, especially surprise winners, in the N.C.A.A. men's basketball tournament.

Making sure Web sites send your personal data in encrypted form is crucial to security.