You may already be familair with the concept of a captcha - essentially a little code for site users to enter into a field before submitting nodes or other forms to your website. Well, Drupal's had some good captcha options for a while now - including images, math questions and ASCII art.

Lately I've been noticing tons of sites on the web using reCaptcha and was happy to just come across a reCaptcha module for Drupal; you can grab a copy for 4.7x, 5.x *and* 6.x!

We're now using reCaptcha on this site so you can see it in action.  As for why its better than other captchas - not only is it a secure way to ensure human form submissions, you can feel good using it as the project was setup to improve Optical Character Recognition technology.