CAPTCHA’s. Love ‘em or hate ‘em, they’re sometimes a good idea to implement. reCAPTCHA is a free service that allows web developers to implement a CAPTCHA on their form with virtually no effort. And did I mention it is a free service? Well, that’s not entirely true.
In exchange, reCAPTCHA is putting the user challenge responses to good use. The service uses scanned in text for the CAPTCHA. The idea is that all the time spent “solving” CAPTCHA’s online can be channeled into assisting optical character recognition programs in decoding the hard to decode scanned in words. Neat, eh?
I put together the following reCAPTCHA in literally 3 minutes. For more information and to put your own reCAPTCHA into action, check out the site here: http://recaptcha.net/
