I’ve been looking to reduce the amount of spam that web forms have been getting hit with recently. Figured that a captcha would be a good solution to determine if a human is in fact filling out the form and not some spambot.  I’m been hesitant to implement most of the captcha solutions I’ve come across due to their lack of accessibility.  For instance, most standard captchas require that you look at an image and then key in what it says.  This would prohibit someone dependent on a screen reader or a user who has images disabled in their web browser.
I’ve been messing around with reCAPTCHAÂ as a solution and thus far have been very much impressed. Â It offers and easy and very well documented means of incorporating a captcha into a site. Â And it also offers an audio captcha for vision impaired users, which is great. Â Also the submissions go towards helping digitize older books. Â Might as well apply that extra time to solving a noble cause. Â They also offer a library to work with most every server side scripting language available.