YouTube accuses Viacom of secretly uploading content to the video-sharing site whilst publicly complaining about its presence.

PlayStation 3 game Uncharted 2 leads the nominations for the Bafta video game awards, ahead of the event on Friday night.

Handheld computing veteran Palm is losing ground to the iPhone and Blackberry in the battle of the smartphones.

Europe's Cryosat spacecraft is set to launch on 8 April on a mission to map the world's ice fields.

Scientists create the first cloaking device to render an object invisible in three dimensions.

Web browser Opera says its downloads in Europe have doubled since Microsoft began offering a choice.

China's first domestically developed civilian helicopter takes off on a maiden flight in the eastern province of Jiangxi.

The potential market for the future of electric cars is to be examined by experts from the University of Aberdeen.

A series of strikes against botnets has not dented cyber criminals' appetite for sending spam, say security experts.

YouTube v big media: Now it's like a soap opera

Explore the biggest websites and what do they do

Despite efforts, the digital divide is getting wider

Riding the strangest rocket in the world

Networks blur the divide between public and private

Meeting the people living behind the digital divide

Facebook says it will not install a "panic button" on its main pages for users to report suspected paedophiles, but will develop its existing reporting system.

Teenagers try to get into each other's online accounts despite knowing it is wrong, according to a new survey.

Countries should be judged on their willingness to open up public data, the inventor of the world wide web tells the BBC.

The mobile network condemns a law firm for sending letters to alleged illegal downloaders, including its own customers.

The global economy for mobile applications will explode over the next two years into a $17.5bn industry, a study suggests.

The UK is "reasonably well placed to cope" with a large scale cyber attack, a report by a group of peers has said.

The growth of illegal file-sharing could cost European countries 1.2m jobs and 240bn euros by 2015, an industry report says.

Firms in China that sell advertising on Google demand clarity about the internet company's plans in the region.

Has copyright gone too far? asks Bill Thompson.

Openness must be defended, says Bill Thompson.

Bill Thompson keeps an eye on the future

Innovation is the key for papers says Bill Thompson

Phones transform healthcare in the developing world

Your help is needed to watch the surface of the Sun

Hi-tech to stop gadgets being stolen

Essential guide for getting more out of Twitter