A tool unveiled by search giant Google will let users tailor search results much more closely to their needs.

A fairground roundabout built by Rolls-Royce in the 1930s to entertain workers is up for sale.

Regular commentator Bill Thompson wonders what future lies in store for good old-fashioned paper.

Fancy being told you have a higher-than-average risk of getting prostate cancer but are at low risk of suffering from glaucoma? Now for about £500 you can have your genome analysed by a commercial firm. Rob Liddle swabbed his cheek and sent off for a scan.

The chocolate company Mars has announced that it is to decode the genetic structure of the cacao tree.

An exam board investigates claims some teachers gave students hints about an A-level biology exam.

Computer scientists are finding novel ways to improve the way people search for images on the web.

Letters between James Bond author Ian Fleming and his "Miss Moneypenny" fetch more than £14,000 at auction.

The ancient Aztecs were sophisticated mathematicians who used symbols to represent fractions, researchers say.

A copy of the warrant for the execution of Mary Queen of Scots is saved for the nation to stop it going overseas.

The foreign secretary publishes John Williams' early draft of the infamous Iraq weapons dossier.

The Foreign Office is ordered to release an early draft of the dossier on Iraq's weapons of mass destruction.

As The National Railway Museum in York opens a new £4m visitor centre, it claims to have discovered a letter from the world's first trainspotter.

Why South American footballers should mature before moving to Europe

Online retailer Amazon has unveiled an own-brand digital book reader called Kindle.

It doesn't matter if films play fast and loose with the facts, says historian Lisa Jardine. What matters is to convey the spirit of the age - and its players.

The men behind video site Metacafe talk about stopping piracy, rewarding users and spotting hits.

The marking of papers online is contributing to inaccurate exam results, a head teachers' group believes.

The BBC News website identifies some of the UK's hottest tech start-up companies.

Road pricing cameras could be used by police to track motorists in England and Wales under new proposals.