CAPTCHA based on iKnow! APILive Demohttp://apps.technohippy.net/captcha_on_iknow_demos

How to Getcd vendor/plugins
svn export http://captcha-on-iknow.googlecode.com/svn/trunk/ captcha_on_iknowHow to Use1. Generate files./script/generate captcha_on_iknow [your iknow account]2. Include javascripts and a stylesheet

3. Set a before filter at the controller in whose views the captcha is usedclass PostsController < ApplicationController
iknow_captcha_check :only => ['create', 'update'] # snip...4. Set a captcha field in viewsHow it looksNew posts

Sound Version of CAPTCHA

Text Version of CAPTCHA