I was doing a somewhat related search and came across these two articles and thought that they would make for an interesting discussion here. "Media mafiosos: Is Adblock Plus shaking down websites for cash to let ads through?" http://www.digitaltrends.com/web/adblock-plus-accused-of-shaking-down-websites/ "Ad Blocking: Theft Or Fair Use?" http://www.adexchanger.com/data-driven-thinking/ad-blocking-theft-or-fair-use/ I didn't thoroughly read the first articled, just skimmed it, but from what I caught, their accusations are based on anonymous sources. The second article does have a point, but it's a bit one-sided (the site is called "ad exchanger" ). The intrusiveness of some of these ads oftentimes crosses the line, I think. Plus there can be security considerations. What do you think?