I ran across the Media Phone Book wiki site today which bills itself as "...the best place on the web for photographers to exchange information about media companies. The primary use for this wiki is for Media Companies to tell photographers the best way to contact them and for photographers to exchange contact information.".
The list is very small, but I've verified that the information provided for magazines that I have worked with is accurate. Presumably the rest is as well. The site has a good list of freelance photo editors.
