You love twitter? You love LINQ too? Then you are gonna adore LinqToTwitter.
LINQ to Twitter is a LINQ Provider for the Twitter micro-blogging service. It uses standard LINQ syntax for queries and includes method calls for changes via the Twitter API.
LinqToTwitter is one of the most inspiring applications out there made with C# by @JoeMayo. It is open source and several projects are using it already.
Code | Social | MS Public License
ASP.NET MVC 2
Have you ever dreamed of having your own Url Shortening Service, Shrinkr is an Open Source Url Shortening Service which demonstrates some of the best practices in developing real life web applications.
Shrinkr provides you with many great features including OpenID Login, Base 36 and 62 based Url generation, Url Thumbnail, Application Health monitoring, Twitter Notifications and much more.
Code | MS Public License