Comments

Comments are a great way to interact with visitors of your website. This can be particularly valuable for companies promoting products and services, to hear what users have to say. Commenting systems often require a database, especially if you plan to have across several pages. However, small businesses host their websites without having database access and neither do they have the technical expertise to devote to creating such commenting systems. That is when third party commenting system prove to be very useful. Here is a list that I found so far, please comment and add some of your own:

Website: DISQU

Disqus offers a javascript embed or blog plug-in (Wordpress, Blogger, TypePad, MovableType) that enhances a blog’s comments and integrates it with a fully moderated community forum, hosted at exampleforum.disqus.com. Disqus’s service adds threads, comment/user ratings, spam control, and user identities for each commenter. The system can either...

IntenseDebate comments enhance and encourage conversation on your blog or website.

Facebook Comments

http://developers.facebook.com/news.php?blog=1&story=198