I'm trying to get some ppc traffic to affiliate campaigns. I e-mailed adcenter yesterday because my ads were still not showing up. They responded and said it was because my keywords contain trademarked words. I also had this problem on overture when i tried to set up a ringtone campaign and couldn't bid on a kewyord like "verizon ringtone". Is this normal? Am I just an idiot and trying to target the wrong keywords?