www.Duotrope.com is the place to start when you're researching where to submit your work. You can search for publications online or in print, and limit your search by genre (humor, fantasy, etc), length, style, etc.
Duotrope's Interviews with Lit Mag Editors: Editors Tell You Exactly what they're Looking for
Rejection Wiki: a wiki for recording literary rejections to help in determining whether you have a standard, tiered or personalized rejection (A personalized rejection often means that even though an editor is rejecting your submission, he or she liked it enough to take a moment to say hello -- and may remember your name the next time you submit)
t-shirt from http://skreened.com/barrelhouse