I've done a little research on the whole copyright thing primarily through google and I've found a lot of useful web-sites.
use this 1. if you're trying to go independent or just generally want some info on copyrights, legal issues and publishers [link]
Now use this 1 for copyrights and copright info [link]
I haven't personally used the 2nd site but it seems trust worthy and official.
Now take ur artwork, characters and stories and go 4 it. bye