Google’s newly released application programming interfaces (APIs) let developers simultaneously craft applications for multiple social networks.

These Google OpenSocial APIs will work with any social network (which are a part), and allow applications to integrate information from the user’s profile, along with data about friends, contacts and activities.

With these sort of APIs any developer can fetch the information to build some messaging application to exchange instant messages with friends in their network and also from other social networks.

nlike Facebook where developers have utilized the platform and have created over 5,000 applications. Google, is planning to beyond just that. OpenSocial is also supported by some giants like Salesforce.com and Oracle.

OpenSocial supporters include Orkut, LinkedIn, Friendster and Plaxo social networks. As expected MySpace and Facebook are missing from the list of social network partners.

Google has an advertising partnership with MySpace. Facebook signed a similar deal last week with Microsoft.