A plugin which identifies and blocks comment and trackback spam on blogs with integration to various blogging systems.

An open source a PHP-based solution for blocking link spam and the robots which deliver it by analyzing the delivery method as well as the software the spammer is using instead of looking at the content of potential spam.

Provides an open source antispam plug-in for Movable Type and WordPress.

Weblogger crystallizes the thoughts of many in declaring a cyberwar on those who inappropriately post in guestbooks and weblogs.

Types of spam seen on blogs.

The blog tools vendor Six Apart plans to roll out an open online authentication system to fight the growing phenomenon of comment spam.

Background of the phenomenon of comment spam and how bloggers responded.

"Here's a look at the battle so far."

Spammers are abusing comment systems to increase their rank on Google. Here are some steps to take to reduce or eliminate this problem.

Owners of weblogs have recently noticed that their referral logs have become the newest target for spam.