i came across a nice little verification idea the other day it when like this 3+3= and you had to supply the answer - sounds simple, but its a good way of stopping them as its harder for them to work this out rather than just copying text. Also read about another system that would show the user a random picture and you had to put in what it was. IE a picture of an apple, you had to type apple. Ingenious solutions for a problem that shouldn't be