This plugin creates a capcha box before your submit button in the comments section to prevent all that unwanted spam. It comes with a mini-admin panel and love.
UPDATED 1.1 — fixed bugs — no more manual input of the submit button
LIVE DEMO — http://digitalzoomstudio.net/installing-magento-on-mamp/221
TWITTER — http://twitter.com/ZoomItFlash FACEBOOK — http://www.facebook.com/digitalzoomstudio
Check my other premium wordpress plugins here — http://bit.ly/dOenET