Easy way to block comment spam on your WordPress blog.
I was getting about 500 spam comments a week before I installed this plugin, after installing It I haven't gotten one spam comment from automated spam bots.
It has made my life alot easier lol. It's a free plugin and the creator keeps It updated. You can get It here.. WordPress › Spam Free WordPress « WordPress Plugins
I made a short video below about how the plugin works. Enjoy..