The problem with metered schemes is that they inhibit users who feel they are burning money every time they touch a page. It's kind of like having to pay by the megabyte every time you use your phone on the Internet.

What about a general subscription model that gets you access to a wide range of websites? The point is to have a fixed price for consumers so they can read as much as you want. Distributing the money to sites you visit is a backend problem.