Outlook Social Connector (OSC) provides a communication hub for personal and professional communications. Just by selecting an Outlook item such as an email or meeting request and clicking the sender or a recipient in that item, without leaving Outlook, users can see in the People Pane activities, photos, and status updates of this person on their favorite social networks.
"A social network can develop a provider for the OSC to synchronize and surface social network updates in Outlook. Popular social networks such as LinkedIn, Facebook, MySpace, and Windows Live are offering providers for the OSC.
The OCS 1.1 Provider Reference describes how to develop an OSC provider using OSC provider extensibility. If you're a developer interested in building a provider for the Outlook Social Connector, review this new reference content on MSDN," revealed Microsoft.