Thanks Joel. I was wondering about this too, as I've seen some bots beat simple CAPTCHA. Todd -----Original Message----- From: Joel D Canfield [mailto:Joel at BizBa6.com] Sent: Monday, June 08, 2009 9:54 AM To: todd at promisingsites.com; thelist at lists.evolt.org Subject: RE: [thelist] CAPTCHA > Do you have any other utilities that you like to use? I've been using simple humanising questions: Is water wet or dry? Is fire hot or cold? Things like that, which are dead simple for a human, but just about impossible for a bot to deduce. joel