Invisible Recaptcha by Google

Google has started accepting signups for the Beta version of Invisible Recaptcha.

I’ve installed it on the development version of StoryTracker and have to say it was pretty seemless to install. It works just like the typical picture or checkbox captchas, but instead of a bulky obnoxious eyesore, the Invisible Recaptcha creates a button for you to add to your form. That’s it – the end of an era.

https://www.google.com/recaptcha/intro/comingsoon/invisiblebeta.html