Comment system which can integrate with existing website

Question

I need third party commenting system for ASP.Net website, preferably free or pay one time fee for the code.

I need the commenting system to be integrate with website login, so that users no need to login again to post comments.

I checked Disqus Single sign on(SSO), however it charges monthly fee for SSO.

Could you suggest any other alternative?

Answer 1

you can try http://livefyre.com/

http://intensedebate.com/

hope it helps