Comments are an integral feature of a WordPress blog. Besides allowing readers to voice their opinion comments also help readers and search  engines to identify popular posts. WordPress offers pretty much complete control over how and when visitors to your site may comment on posts and pages. This allows you to disable comments on pages for instance if you have only legal pages on your blog.

The comment features include the ability to blacklist email addresses from leaving comments if they constantly leave spam comments. While the default Akismet plugin that comes with every installation of WordPress is pretty good at filtering out spam comments some do make their way past the filters and end up waiting for moderation.

Azad Shaikh authored this video that shows how to manage comments in WordPress. The author explains all the various options available and the  result those settings will have on comments. The video is through and covers everything you need to know about managing comments in WordPress.

http://www.youtube.com/watch?v=wlNiN_Aa2lM&feature=youtube_gdata