This ReCatcha element for Zoo 2.3 (Yootheme) can be added to any submission layout to prevent spam You can also change the look of the ReCaptcha. Configuration is easy, but you need to sign up and get a free public and private key from ReCaptcha (see also use reCAPTCHA on your site). The element doesn't use the standard Joomla installer, instead you just need to unzip a file on your server. If you want to see the ReCaptcha element in action, please check the "Business Directory" menu in our Zoo Demo. This element is not compatible with Zoo 2.4 beta. But we will release a new version, when the final version of Zoo 2.4 is released.