incrediBILL - 9:10 am on Jul 2, 2006 (gmt 0)

AI systems can't distinguish between a person and a program that has been designed to create clickstreams that people would create. This is (among other reasons) why the click fraud problem is so difficult.

Hate to burst your bubble, but it's as simple as interjecting a CAPTCHA of sorts after X number of page views. The bots can't respond to the CAPTCHA, they are busted, problem solved.

I've been doing this for 6 months now and it works like a charm.