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Hi-tech tool tracks city graffiti

US cities are battling the problem of vandalism head on with a hi-tech system that analyses and tracks graffiti and its perpetrators.

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Design win for Alzheimer's tool

An online screensaver and social network for people with Alzheimer's and their carers has won a Microsoft-led software design prize.

The tool includes a screen saver which carers could use as a memory prompt, uploading text, images and video clips.

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Tiscali e-mail 'hit' by spammers

Spammers have knocked out the e-mail service for many of the customers of internet service provider (ISP) Tiscali, the firm has said.

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Shifting times in the TV industry

The way in which TV viewers decide which shows to watch, and when they watch them, is changing radically.

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X-ray technology in the 21st century

Around half the hospitals in England now use a digital system which allows radiologists and doctors to access all images, including CT, MRI and X-ray, on a computer screen.

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Microsoft unveils table computer

Microsoft has unveiled a new touch-sensitive coffee table-shaped computer called "Surface".

Designed to do away with the need for a traditional mouse and keyboard, users can instead use their fingers to operate the computer.

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Move to create less clumsy robots

The race to create more human-like robots stepped up a gear this week as scientists in Spain set about building an artificial cerebellum.

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Designing mobiles for the world

Mobile phones have shaped global communications. But who shapes mobiles? BBC News speaks to Jan Chipchase, principal researcher at Nokia Design.

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Deutsche Telekom backs VoIP firm

Deutsche Telekom is investing in the internet telephone company Jajah, joining the rush of major telecoms groups to back the technology.

VoIP technology allows users to make calls either via their computers or using mobile phones.

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The billion pound 'bank robbery'

Billions of pounds are being stolen by organised gangs who get access to our bank and credit card accounts.

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Malaysia seeks Irish sniffer dogs

The Malaysian government has said it hopes to obtain a full-time pair of Northern Irish sniffer dogs trained to seek out counterfeit DVDs and CDs.

These two dogs, Lucky and Flo, have been so successful, they have attracted death threats from Malaysian criminals

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YouTube site 'blocked' in Morocco

Internet users in Morocco who have been unable to access YouTube have voiced concern that it is being deliberately blocked by the authorities.

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Data protection worries over CCTV

A new organisation set up to highlight concerns over the legality of CCTV cameras across the UK has been launched in Edinburgh.

CameraWatch said that up to 90% of the UK's 4.2 million cameras were in breach of the Data Protection Act.

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What search engines know about us

The search engines that power our journey through the internet know a lot about us - from the operating system and browser we use, to the kinds of websites we typically visit.

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Children 'meet net friends often'

Many children are meeting up with people they first encountered on the internet - and their parents know nothing about it, a study claims.

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Online and offline worlds merge

Google has launched a tool designed to make it easier for computer users to use online applications offline.

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EMI strikes a deal with YouTube

EMI has signed a deal with YouTube that will allow its users to access videos by EMI artists.

It means all four of the world's major music firms are now YouTube partners.

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US arrests internet 'spam king'

A man nicknamed the "spam king" for allegedly sending out millions of junk e-mails has been arrested in the US.

Robert Soloway, 27, was arrested in Seattle, Washington, after being indicted on charges of mail fraud, identity theft and money laundering.

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Bank says sorry for cash problems

Millions of customers across the UK were left without any access to cash after their bank cards stopped working in cash machines.

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Virtual world, real millions

Millions of people are opting out of real life and signing up to "live" in computer worlds instead - and there is a fortune to be made there by selling goods and expertise in the virtual world.

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