Why Didn't Captcha Advertising Take Off?
mr_dbr: More importantly, why hasn't http://www.thepcspy.com/kittenauth taken off?This is more practical (and cuter) than using brand-logos.. Pictures of kittens and other animals are easy to find, whereas getting a wide enough range of companies willing to let you use their logos will be far more difficult.. It would be like having a captcha where there are only 5 possible strings to enter..