There is also Cryptopia and they have also an miningpool. A PoS pool is under developement. Dont know how long that is going to take for them. I forgot that they also have an marketplace. They need some more volumes but its growing.
Cryptopia is one of the worst exchanges around. First they had a faucet, then not.
Then their is their interface.. crap
Offcourse you can trade, when you aim to spent 5 cent