posted by
hendrikboom at 07:12pm on 10/12/2007
I just found http://recaptcha.net/
It describes a system web sites can use for distinguishing between humans and automata. As a side effect, it helps Carnegie Mellon digitize books.
It describes a system web sites can use for distinguishing between humans and automata. As a side effect, it helps Carnegie Mellon digitize books.