twitter like open source software for .Net platform?

I am wondering whether there is twitter like open source platform written in .Net (C#, ASP.Net, SQL Server, etc)? I want to i开发者_StackOverflow社区ntegrate twitter like feature into my own web application, but not want to use public twitter service.

thanks in advance, George

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Maybe http://sourceforge.net/projects/shoutout-twitte/.

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Do you mean an open source API wrapper? If so, then maybe Flurr? http://flurr.codeplex.com/