There is a KOOL website out there that specializes in buying, selling, and trading comicbooks. It is ComicSwap! This website has been around for a while. We posted about them back in December of 2012–HERE. The website has changed since then and is much more focused on the buying and selling of comics. They can get comics from individual collectors and comic stores. You can also sell your comics on this site. Check out their video below.
I am considering putting some comics for sale on ComicSwap! myself.
Stay Geeky My Friends!