I have been aware for some time about the problems with Dorchester Publishing, mostly through the problems Charles Ardai had with his Hard Case Crime book line, but had not paid close attention to what was actually happening with some of their other lines. I came to this through Tom Piccirilli's blog, The Cold Spot. He provided this link, which I think should be given as wide an audience as possible:
Dorchester/Leisure was responsible for consistent, reliable, well-written genre lines. Nobody got rich writing for Dorchester, but a number of very talented authors were able to make a living. Publishing companies often treat their authors as poor cousins, but this is ridiculous. I don't know how much good a boycott will do, but it certainly can't hurt.
UPDATE: Here's what writer Mary San Giovanni has to say: