Craigslist is in the process of implementing new image CAPTCHA method. Friend of mine told me that the new captcha method is on trial basis in certain cities and categories. The new captcha seems more difficult to solve even for regular people.

We believe that the new captcha is going to put lot of software written that was automating old captcha image confirms.

We will provide more detailed and technical information on the new captcha pretty soon, so be sure to check back.