This plugin allows you to implement Google Captcha (reCAPTCHA) into web forms.
Captcha Bank is an easy to use wordpress Captcha plugin to prevent spam on your site while letting real people pass through with ease. It's more
Stop spam bots from registering, logging in and commenting on your site without using annoying Captcha codes, puzzles or faulty blacklists.
Confident CAPTCHA™ is a clickable, picture CAPTCHA that stops spam and malicious bots, while remaining a very easy CAPTCHA for humans to solve.
The Add new recaptcha google plugin allows you to implement a super security REcaptcha form into web forms.
An easy to use wordpress Captcha plugin to prevent spam on your site. You can use Image Captcha to protect comments and the admin panel.