Many sites one API.
Based on gadget technology.
Based on simple Technologies.
Learn once & write anywhere.
--->more users for every applications.
--->more applications for every user.
Provides client-side access to People, Activities and Persistence.
Build applications without maintaining your own server
Build applications that include a server-side component
Provides server-side access to People, Activities and Persistence
People are a fundamental part of social networking software and the OpenSocial API.
The Person object provides access to a user's information.
There are two Person objects
Two sets op people
Opensocial APIs make no assumption on Relationships.
Collection of actions a user has taken in the context of a given container.
Activity object provides informations about activities .
Save state between sessions.
Only user scoped datas are allowed.
Server free applications.
locations where gadgets may be rendered in containers.