Google has released a set of open application programming interfaces (APIs) that lets developers simultaneously craft applications for multiple social networks.
The OpenSocial APIs will work with any participating social network, and allow applications to integrate information from the user's profile, along with data about friends, contacts and activities.
A programmer could use the information to build a messaging application to exchange instant messages with friends in their network, and potentially across networks.
An application developed for Facebook is limited to this one service, but a set of common, broadly supported APIs would allow developers to distribute applications across multiple social services.
Facebook was the first major social network to open up its platform to developers, and has attracted more than 5,000 applications since June.
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