I'm an AdSense publisher and I don't have an AdWords account (I don't advertise and don't plan to). I'd like to ask advertisers, particularly those who cast site-targetted ads: Can you find out that a publisher blocks your URL via his/her competitive ad filter? I mean find out directly in the AdWords user interface (not by guessing based on whether your ads are served on the publisher's site). Thanks.
[edited by: John_Carpenter at 5:13 pm (utc) on Dec. 18, 2006]