"ModernCaptcha" is a simple script in order to prevent spam in a very user friendly way. In a few words, your visitors don't have to type some characters as you see on the most websites, the verification is made by choosing the company name belonging to the logo that is show.

It's an interesting approach, but, as one reader pointed out, bots has a one in five chance of guessing correctly. That's way less than with a more standard image manipulation CAPTCHA method. I'm not sure I'd want to use it on my sites, but it might be good for a smaller site.

There's a demo of the end result and a download of the latest version as well as some limited support provided in the comments of the post.