Is there a public site to make and share live examples of C#/.NET code?

Question

For instance, we now have that in the StackExchange universe for SQL Azure (which handles general SQL examples very well).

I was thinking it would be very nice to have a similar environment to be able to have a few class files and a console program to be able to demonstrate core basic C#/.NET programming techniques - live.

Is there such an online live C#/.NET environment already that we could use to post on StackOverflow? (If not, I will post on Meta).

Answer 1

CodeRun:

http://coderun.com/ide/

Answer 2

I found this one: Compilr

http://compilr.com/IDE/31-md5/

Lets you compile but not run - still pretty interesting.