Ancient Rome revived in 3D
Millions of internet users get the chance to explore ancient Rome, recreated in 3D by Google Earth.
Google searches track flu spread
Google has unveiled a new website that maps flu outbreaks by plotting the locations of flu-related search terms.
Study shows how spammers cash in
Spammers get one response for every 12.5m e-mails they send and still make big profits, US researchers find.