Cryptopia is dead and we only have Bittrex on which someone spins a number of coins into a circle to sustain some volume, deposits and withdrawals are locked as a result of the last 51% attack. Obviously, Musicoin doesn't have any money for a new exchange and in less than 7 days the block 4200000 (with security upgrades) goes out, then we'll see do we have an exchange or not. I really hope that Musicoin will survive.