|Technically ad blocking isn''t under attack, the site that was remove from the block list (and which I have since manually added to mine and to my hosts file) provides ad blocking detection, but doesn't serve ads. Still the idea that putting a url on a list to block, with block meaning that you simply don't accept any information or commands from it, not that you crack it and break its security, amounts to "circumvention of a technical measure" is a bit of a stretch, and I think abusive of the DMCA process.|
Of course now that people have heard about it many will manually block the site (even if they didn't care so much about ad block detection before).
Other sites to block (all go to the same company) can be seen at one of the links from my previous post. reddit.com
You can either block the domain, or just block having it presented by a third party site.
To do the former you can add it to your ad blockers block list as something like sneakystamp.com (just the domain) or ||elasticchange.com
To do the later you can add it as something like ||doubtfulrainstorm.com^$third-party