Free!
The Practicing Writing blogger is making a couple of resources about markets for book reviews and essays available free. She says:
One provides a directory of paying markets for book reviewers, and the other one lists dozens of paying markets for essayists. The most recent updates for both guides were completed last December.
The time is coming to say good-bye to updating--and selling--these two guides, too. But before they disappear from view (which will happen on August 1, 2010), I want to give you all the opportunity to access them (free of charge). They're still available on the site that has handled the sales from the start:
categories: resources, markets