minteye - STOP SPAM, MAKE MONEY!
Provides a configurable limit on the length of comments left in the comment form, with a dynamically updated character count displayed for the user.
Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.
Adds CAPTCHA anti-spam methods to WordPress on the forms for comments, registration, lost password, login, or all. For WP, WPMU, and BuddyPress.
Simple question that blocks most spambots (and paid robots) by making them answer a common sense question
Bloquea el spam de todo tipo de robots con un captcha que es invisible para los usuarios de tu web o blog.
A simple and efficient anti-spam plugin
Unspam makes it harder for spammers to automatedly send spam to your blog by changing the names of the fields in the comment forms.
Enigma encrypts text and decrypts it on client to avoid your
email address and any other sensitive content caught robots.
Several types of captcha to protect your site in one easy to use plugin.
This plugin detects temporary email addresses like mailinator, not connectable email addresses and helps to keep the userbase and comments clean.
Integrates CaptchaAd anti-spam methods with WordPress including comment, registration spam protection.
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