A lot of people probably already know this place but it's my number-one (so far only) resource for finding places that take specfic submissions: http://horrortree.com/ It finds open submissions for all forms of specfic short stories and lists their pay rates, deadlines, and all their submission guidelines. Some of the places pay a pro-rate, some semi-pro, some with token and a contributor's copy. But hey. Having a place that compiles all different specfic markets can't be bad for a specfic writer.