Try this: I picked up a bimonthly publication at Borders once. I forget what these things are called. They're short story collections that look like old dimestore novels? This one's called simply Fantasy & Science Fiction, I think. Picked it up last March. There's a website here on the back cover:

http://www.fsfmag.com

And here's an address:

Fantasy&ScienceFiction
PO Box 3447
Hoboken, NJ 07030


Gordon Van Gelder, Publisher/Editor
Robin O'Connor, Assistant Editor
Harlan Ellison, Film Editor
Barbara J. Norton, Assistant Publisher
Keith Kahla, Assistant Publisher
John J. Adams, Assistant Editor
Carol Pinchefsky, Contests Editor

Says here the subscription office, publication office, and general and editorial office are all at the same PO Box. Hope this helps any.