There is an inverse relation between sites with ads, and sites that contain useful information that require time to look through. Open access journals, StackExc

There is an inverse relation between sites with ads, and sites that contain useful information that require time to look through. Open access journals, StackExchange, product support messageboards....none of these have ads. In fact, it's the sites peddling trivial BS that are chock to the brim with ads.