“There’s a prisoners’ dilemma problem with ad blockers, where it doesn’t matter if one site shows reasonable ads if others show crap ads, because those crap ads will drive users to install ad-blocking software, and ad-blocking software casts a wide net and blocks as much as it can. It’s unlikely that most ad-blocker-using Ars readers installed their ad-blocker because of the ads on Ars Technica.”John Gruber weighs in on ad blockers. Clever as a fox.