One of Fred B. Schneider's editorials in IEEE Security and Privacy magazine is being featured on the IEEE Computer Society home page.

http://www.computer.org/

It discusses the difference between what kinds of articles are suitable for publication in a "magazine" versus in a "journal"--at least as far as IEEE is concerned. Interesting--take a look at  http://www.computer.org/security/v2n5/aeic.htm