[Paulomus]

Yes, Wikipedia would be another example. It is one of the most useful destinations on the web, but does not charge anything. So too are web-comics, just about all of which are free to view, while the creators make their money elsewhere (through donations, t-shirt/book sales etc.). In these kind of things it is the voluntary readership/participation that makes the site/blog/comic a success. The existance of a community of users is a valuable resource that should not be alienated lightly.