londrum - 1:14 pm on May 18, 2013 (gmt 0)
the safari browser includes a button as standard now, that strips out all the ads from a page (the 'reader' button). you dont even need to add an extension.
but if it becomes a major problem then the ad companies will just change the way they deliver the ads.
i remember years ago i dabbled with adding a few text links, and they we're doing it through a .php script even back then.
presumably adsense could be done the same way as that... entered into the page as normal text.