Editor Gordon Van Gelder is trying a unique (as far as I’ve seen) promotion of The Magazine of Fantasy and Science Fiction:
I just got a box of fifty advance copies of the July 2006 F&SF sitting here.
I’m looking to give away these copies to the first fifty people who ask for one.
The catch is this: if you want one of the copies, you’ll have to blog about the issue.
Your blog can say anything, even "I’m only writing this blog entry about F&SF because I said I would to get a free copy of this sucky magazine."