Contact form with captcha plugin allows you to use a Google reCAPTCHA contact form on your blog. It requires PHP 5.0 or later.
Blue Captcha is a powerful and highly customized WordPress plugin that effectively protects your WP blogs from spammers and unwanted persons.
minotaur - Rid the internet of text CAPTCHAs!
NURCaptcha inserts a reCAPTCHA on the Register Form of your site to protect it against spambots.
This plugin provides the *reCAPTCHA* tag for the Contact Form 7 Plugin. It allows the usage of a reCAPTCHA field provided by a 3rd party reCAPTCHA Plu
Protect your site with a video CAPTCHA solution that provides better security and is easier to read for your visitors.
Integrates reCAPTCHA anti-spam methods with WordPress including comment, registration, and email spam protection.
minteye - STOP SPAM, MAKE MONEY!
Simple and cool login widget for your WordPress! AJAX, support SSL, show avatar, profile button, register and lost password forms...
Flexible way to inject captca for forms on site.
Several types of captcha to protect your site in one easy to use plugin.
Add reCAPTCHA to your WordPress login form
This is a simple plugin that adds a recaptcha validation to the bbPress 2.0 topic creation and topic reply forum.
This plugin enables you to use a Google reCAPTCHA contact form on your blog.
Easily add AJAX contact forms to any page, post or widget area with an unlimited number of custom fields. Easy to manage and style!
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