Originally Posted by Catalyst

Well the other big problem these days is anti-spyware and personal firewall type programs that block or delete affiliate cookies and/or affiliate linkes. They primarily target LS and CJ cookies and links the most since those are the biggest networks.

Of course the other issue is parasites, that overwrite affiliate cookies. They are more prevelant in the big networks.

So if you are seeing network sales go down and Indies or small networks staying steady these could also be some of the reasons.