Commercial websites are, by and large, so aggressively hostile to reading that I work very hard to avoid seeing their pages. I’m a heavy RSS user, and from my RSS reader I save posts I want to read directly to Instapaper. When I’m forced to go to a site in Safari I immediately choose the “Use Reader Automatically” option for that site. I don’t do all this because the sites have ads. I do all this because the design of the ads makes it impossible for me to read the site’s posts.