What startups here are focusing on developing on top of .NET?
megamark16: The company I work for uses .NET for our hosted CRM solution (www.eSalesTrack.com), and before that I used .NET at the bank I worked for for our online banking application.  I use Python/Django for all of my own personal projects, some of which I almost plugged here but since they don't have anything to do with .NET I'll refrain.