As our portable devices become more common and more powerful, the Web is being wrecked by the blight of ads. I see this both with browsers on computers but also and especially on the portable devices, where the pop-up and pop-over advertising not only obscures the content but is often impossible to get rid of. On a smartphone, and I don't care how big the screen is, the little 'X' or "Close ad" button is so small as to be unusable.
It is now ordinary to visit a site and then leave within a few seconds without reading anything because the ads are so difficult to get rid of.
'Free' content, of course, is not really free. The people and organizations running these sites have to pay the bills somehow, but I think we are on the wrong side of a downhill slide, where ads are about to overwhelm the content (and on some sites this is already true).
What I find most disappointing is the commercialization of the Web. There was a time, in the nineties, when creating and maintaining a Web site was easy enough for almost anyone. But the complexity of managing even a basic site is staggering. Tools like Wordpress and Drupal have become so complex that they have become textbook cases for becoming the problem they were developed to solve.
So we all go to Facebook, which has done a good job of making it easy to have a "page" for a community group or some special interest/hobby. But is it really healthy to have the entire world using a single platform?