Captcha is a great tool to minimize spammers and bots from submitting the forms on your website with spam and advertisements instead of legitimate information. There are many resources out their to get Captcha up and running on your forms. For ColdFusion developers, there is Alagad Captcha and Peter Farrell’s Lyla Captcha.

Those are all fine if you want to install the product on your server and setup the appropriate code to get it going. But there is one other way that is quite a bit easier to do, via a WebService.