Nervous Question

[lurker_in_the_wire]

I wish to write fiction set in OA and host it on other other writing-sharing sites. First, am I allowed to do this, and second, how should I avoid copyright issues? Like, I want to give credit where it's due; most of the people on this site are way smarter than me, and I don't want to take credit for their intelligence. But I also don't necessarily want to end every short story with a Works Cited page.