IanKelley - 3:36 am on Dec 31, 2005 (gmt 0)

The point is that throughout those 8 years there has been an ongoing war between PPC search providers and people trying to exploit the system. This isn't an even remotely new issue despite new media coverage.

It's true that there are ways of committing click fraud that nothing out there right now is going to catch. I can think of a variety of automated fraud methods that could make virtually endless money without ever raising a flag in current systems.

To my knowledge none of them are being used on a large scale so far, fortunately.

On the other side, I can think of various ways to both identify and eliminate them so I disagree that it's impossible to catch well implemented click fraud.

That's exactly like saying it's possible to make an unstoppable bullet or unpiercable armor.