Hello. since I wanted to filter some of the adsense ads that appear on my blog I looked for their URL's, but all of them have a common URL...something like "google syndication/pagemap..." I actually can't find the advertiser URL. Am I doing something wrong, or what is happening with those URL'S? Thanks in anticipation for your help!
I didn't quite understand. If they share a common url and you want to ban them altogether, just use the url to ban using the competitive ad filter. In regards to saying you can't find the URL... Right-Click > Copy Link Location > Paste it somewhere (probably not in the address bar just in case) and you can see the URL somewhere in the mumbo jumbo in the copied link location.
Right Click > Copy Link location if you are using FireFox.. Right Click > Properties is also a good way.. but I like the first method.