Wordpress is almost undoubtedly the most popular blogging software that you can install on your own website. With that position at the top - there is the possibility of exploitation of a lot of vulnerabilities; especially with being an open source application. If you happen to run a website with a wordpress blog installed, you likely already know the constant havoc that comment spammers can throw at you. Smaller, less popular blogs might get a few spam comments a week: larger, more popular blogs face the relentless thrashing of blog spam each and every day. These blogs appreciate the tools that can help keep the comment spammers at bay, at least they appreciate any help that can help them combat this problem in an automated way. The net-security.org website lists 10 wordpress anti spam tools (http://www.net-security.org/article.php?id=987&p=1): which you should check out if you’re having an issue with comment spam and your Wordpress blog.