Donation will only get you so far and sooner or later the novelty of the idea will wear off.Ebooks seems to be working a little better now, but its still a very niche product.

The thing with blogs/specialist is that they don't cover a big scope and they are not consistent. The job of a journalist is not to write a masterpiece on a subject once in a blue moon, it'ss to write information pieces everyday, on a consistent schedule and focusing of the issues that could have an impact on the readers life. Even if the reader has not heard of them before or care deeply about them. And in order to do that, they usually ask -or should ask- specialists.