The Stream .NET SDK by Stream communicates with the API to access data related to activity streams and news feeds. It contains installation with NuGet and usage. Documentation available at http://getstream.io/docs/
For the past few months, the API of microblog site Twitter has been used as the basis for many popular and creative mashups. Now Facebook, with the launch of its highly anticipated Open Stream API, is attempting to gain some attention as a platform for social networking applications.