Another not-to-be-missed plugin!
If you’re finding that you have blog traffic, but few visitor comments, try Facebook Comments for WordPress. This plugin inserts an easy-to-use Facebook form that allows any visitor logged in to their Facebook account to “like” your page with one click, or comment without providing any other information. It also allows visitors to log in to Facebook from your blog post instantly.
Take away one of the obstacles to posting comments on your blog by using Facebook Comments for WordPress. No need to register, no need to enter name and Email address. Just comment, and they’re done!