[Steven]

Since Commentics was released, there have been several requests for a different captcha to be used, namely reCAPTCHA ( http://www.google.com/recaptcha ). Unlike the current captcha, this uses an external (free) service which I think now requires a Google account. I see the advantages as follows: it uses words which robots have not been able to read, and it doesn't require the website owner's server to have the GD library installed. Other than that, I regard the current captcha ( http://www.phpcaptcha.org ) as being just as good. The advantages of the current captcha are that it is very customizable so you can make it as hard or as easy as you see fit, and I feel that it aesthetically matches the rest of the form whereas reCAPTCHA does not. You can vote to say which one you prefer and if you like you can also post with your own pros and cons.

[Static]

I'd keep the current one, if only because of the fact that you have to sign up to use reCAPTCHA which also means that it takes a little more time to get things running. I would, however, add a link and/or instructions regarding reCAPTCHA in the backend, so people without GD or ones that dislike the current one can install it on their own without much trouble.

Also, you have a few extra characters in the links.

[Steven]

Hi,

Yes a tutorial for implementing reCAPTCHA would be good.

I did a bit more research today and it appears that reCAPTCHA cannot be used more than once on the same page. This makes it difficult to switch to as at the moment I'm working on changing Commentics so that it can have multiple instances. I think this is possible with the current captcha because its demo ( http://www.phpcaptcha.org/try-securimage/ ) has two instances.

Thanks, I fixed the links.