Spam Karma2

If your blog is hit by comment, ping back and referer spam and you’re tired of deleting everything by hand, Spam Karma 2 comes to the rescue. Through a variety of filters, it calculates each comment’s karma, reliably sorting out all illegitimate feedback (which has bad karma). It works very well and helps you get rid of all unwanted messages pronto. The myriad options are a bit intimidating at first and can be left at their default values, since Spam Karma 2 works its magic either way.