Fiction (Magazines, Print and Web-Based)

Print
Analog Science Fiction and Fact
Andromeda Spaceways Inflight Magazine
Asimov's Science Fiction
Black Gate: Adventures in Fantasy Literature
Blood, Blade and Thruster
Continuum Science Fiction
Interzone: Science Fiction and Fantasy
Jupiter Science Fiction Magazine
The Magazine of Fantasy & Science Fiction
Neo-Opsis Science Fiction Magazine
On Spec Magazine
Paradox: The Magazine of Historical and Speculative Fiction
Postscripts Magazine
Realms of Fantasy
SF Magazine (Hayakawa SF) (Japanese)
Solaris (French)
Weird Tales: The Original Magazine of the Unique, Fantastic & Bizarre

Web
Abyss & Apex
Fantasy Magazine
The Future Fire: Social, Political & Speculative Cyberfiction
Hub Magazine: Free Sci Fi, Horror and Fantasy Fiction
Infinite Matrix (Ceased publication, but plenty of interest is archived.)
Heliotrope Magazine
Jim Baen's Universe (The final edition was released in April 2010, but plenty of interest is archived.) Lightspeed Magazine

Orson Scott Card's Intergalactic Medicine Show

Strange Horizons
Tor.com