ecoinfund has opened the cent market：
BTC/CENT:http://www.ecoinfund.com/market=87
LTC/CENT:http://www.ecoinfund.com/market=88
DOGE/CENT:http://www.ecoinfund.com/market=89

and will open more market at soon.

This is the ecoinfund donation address, pls support them:

PG3wiKpMjx7c4xju1tkJoqJap7FfVsBqVp