That's about it. At least Amsterdam Whitney has a fine glossy magazine that you can walk away with. And they do seem to make some effort to make themselves visible. Some of the most rotten of the rotten are the vanity presses that never ship the books they promised. But even many of the ones that do, the quality is shudderingly bad. Basically you are better off going to a printer yourself. Used to be some good links on the racket via the SFWA web page, and the loosely-associated "Preditors and Editors" site.