To protect your Blog from automated spambots, this plugin adds invisible formfields to your comment form.
Cryptex transforms plain-text E-Mail-Addresses into Images - automatically - No scrapers. No harvesters. No spambots. That's our goal!
With the release of WordPress 2.8 development of Yawasp is discontinued!!! For further protection against automated Spambots please checkout the succe
NURCaptcha inserts a reCAPTCHA on the Register Form of your site to protect it against spambots.
This plugin protects your registered user base by preventing registration with a disposable email addresse (like the ones provided by mailinator).
SiteBrains blocks spam posts using a completely configurable set of rules. Both interactively as the user types and on our servers upon submission.
Block SPAM without any type of CAPTCHA - plugin add "HoneyTrap" (and a few other tricks) for comment form to block SPAMbots.