Etherdelta is a decentralized exchange....like nappoleon just said, Dexaran has a decentralized exchange in development, he needs a web dev for finalizing UI if I recall correctly. He want to work on many things like implement raiden and swarm on ethereum classic, remember that if you want to help him you can join his ICO (you can find it on his github), you get erc223 token DEX 1:1 on your ETC purchase, which will be used for voting purposes