BonusCoin is on 7 Exchanges currently.

Heres the current list:
http://www.bittrex.com
https://poloniex.com/exchange/btc_bns
http://www.bleutrade.com
https://www.europex.eu/#coin/btc/bns
http://cryptokopen.eu/buy-BonusCoin
http://www.cryptoaltex.com
https://www.palth.net/market/BNS/BTC

All of this our MultiPool info, our Pools, and MUCH more can be found on the front page of the thread too.
https://bitcointalk.org/index.php?topic=524212.0