ExpressionEngines comment module is not the most effective commenting system. I have been a bit annoyed with it lately, on just about every EE site I have developed, as well as my own. It was time to replace it with a better system. Thankfully someone has abstracted the commenting concept out into a web service called Disqus.
Disqus (dis·cuss • dĭ-skŭs’) is all about changing the way people think about discussion on the web. We’re big believers in the conversations and communities that form on blogs and other sites.
Disqus Comments is a comment system and moderation tool for your site. This service lets you add next-gen community management and social web integrations to any site on any platform. Hundreds of thousands of sites, from small blogs to large publications, rely on Disqus Comments for their discussion communities.
You can can post comments now by logging in with your Twitter, Facebook, Disquss, or OpenID accounts.