Does anyone know of a third-party service that manages user comments for websites?

Question

I'm making a simple HTML website on which I would like users to post comments.

Does anyone know of a third-party service that allows me to embed code snippets in my site which become comment boxes for users to post comments on my site at those positions, and the service takes care of all captcha / spam, etc. and I can log into an account interface to approve and delete comments?

I'm thinking of something like this:

<object width="425" height="344"><param value="
http://www.somecommentservice.com/account=
234234&commentId=mainPage"></param></object>

<object width="425" height="344"><param value="
http://www.somecommentservice.com/account=
234234&commentId=article001"></param></object>

<object width="425" height="344"><param value="
http://www.somecommentservice.com/account=
234234&commentId=article002"></param></object>

Answer 1

Try http://disqus.com

Answer 2

Try http://disqus.com/.

Answer 3

Disqus, IntenseDebate, and Echo are the three big commenting systems right now.