Hi there, sometimes is a pain to block advertisers specially with rich media ads.
Recently I tried to block one flash ad, it used to be easy to find the link when clicking on the Google Adsense icon (report tool) but this one didn't have any link, just pure code. I had to go offline and click it to find out the URL, this is the case for that ad.
For others, I'm seein on my websites the same button but when logged in the hover activates an X and "remove - avoid this ad", interesting. I like this feature, don't know how new this is. Still, the case of the ad with no links sucks...