inactivist - 4:25 pm on Mar 17, 2010 (gmt 0)
I just blocked all partner ad networks. I'll watch and see what happens.
One thing to consider: Google opened up the network to partner networks because it felt it had to in order to expand (or preserve) revenues -- in a way, it's an admission that other ad networks are eating into Google's pie, and G wants to get a piece of that action. So: if G is facing increased competition, blocking partner ads is probably going to hurt publisher revenues.