By Rory Cellan Jones Technology correspondent, BBC News

Google and many other net firms trawl data to back up web servicesGoogle and MySpace have announced they are collaborating in a deal which could shake up the social networking industry. MySpace has agreed to join OpenSocial, Google’s new platform designed to allow developers to build applications that will work on any website. MySpace joins other sites including Bebo, LinkedIn and Orkut in signing up to OpenSocial.