How do I log in to my asp.net application using Facebook (or another identifier)?

Question

Like sites like SO, you can authenticate through Facebook, OpenID, Google, Blogger, Twitter, etc.

I am writing an ASP.NET website (C #) and I would like to be able to accept logins like this, in addition to offering the usual simple vanilla username / password found on any other site.

Where to begin?

Answer 1

You might want to try DotNetOpenAuth

Here is a similar SO question with a few more links

Answer 2

http://www.dotnetopenauth.net/

, SO - (. http://blog.stackoverflow.com/2010/12/stack-overflow-gives-back-2010/).