Twitter, the social networking site which allows users to say something in up to 140 characters, sees its 20 billionth message sent.

Nifty ways to navigate the night sky

Click looks at how people are using proxy servers and VPNs to access restricted content on the internet, and bypass geographical borders.

Web entrepreneur Joi Ito speaks about his life and career.

Owners of mobile phones are being asked to test the security of their network to see if enough is being done to stop eavesdropping.

Newsbeat's had an exclusive look at new training being given to UK soldiers at the Royal School of Artillery in Wiltshire.

Samsung Electronics reports record quarterly profits thanks to higher sales of smartphones and components such as memory chips.

Porsche has confirmed it'll make a limited number of a new hybrid supercar it's been developing.

Four government departments spent almost £6m ensuring their websites appeared on search engine results pages, new figures show.

No "significant" personal data was grabbed by Google when it snooped on wi-fi networks, says the UK data protection office.

Security researcher Ron Bowes tells BBC News why he collected and published the personal details of 100m Facebook users.

Facebook has made its first steps into the search market with the launch a servcie that allows users to quiz the site's 500m members.

Some of the biggest names in Japan's technology industry report earnings later today and the likes of Panasonic and Sony are betting on 3D to drive sales of new TVs, DVD players and camcorders.

Online retailer Amazon launches its popular Kindle e-reader into the UK market for the first time, with a new look and more books.

Details of more than 100 million Facebook users have been harvested and published on the net by a security researcher.

Lawsuit filed in San Francisco district court after firms resurrected deleted browser cookies.

The government has finally set a date for the auction of airwaves crucial to next-generation mobile services.

A High Court has ruled that devices that allow gamers to play pirated video games on the Nintendo DS console are illegal in the UK.

Two Newsbeat listeners, Neil and Melanie, have been given a sneak preview of Nintendo's new hand-held console the 3DS.

Asian countries top the charts when it comes to internet speeds, according to a global survey by network giant Akamai.