I think it would be nice to integrate reCAPTCHA in MODx, maybe with a plugin or something...
From their website:
reCAPTCHA improves the process of digitizing books by sending words that cannot be read by computers to the Web in the form of CAPTCHAs for humans to decipher. More specifically, each word that cannot be read correctly by OCR is placed on an image and used as a CAPTCHA. This is possible because most OCR programs alert you when a word cannot be read correctly.
But if a computer can’t read such a CAPTCHA, how does the system know the correct answer to the puzzle? Here’s how: Each new word that cannot be read correctly by OCR is given to a user in conjunction with another word for which the answer is already known. The user is then asked to read both words. If they solve the one for which the answer is known, the system assumes their answer is correct for the new one. The system then gives the new image to a number of other people to determine, with higher confidence, whether the original answer was correct
They also have a mailhide function:
Many spammers crawl the web looking for email addresses. When they see an email address on a web page, they send spam to the address. Mailhide allows you to safely post your email address on the web. Mailhide takes an address such as [email protected] and turns it into [email protected]. In order to reveal the address, a user must click on the "..." and solve a reCAPTCHA.
I think it would be great when a whole community like MODx helps with a usefull project like reCAPTCHA.
More information on
http://recaptcha.net/.
