Great post, thank you very much for the input! We are also on the exchanges Coins-e, Coinex and Cryptokopen, as listed on the cryptogenicbullion.org homepage. We are also actively working on getting CGB on other exchanges at the moment. I agree 100% that is a very important aspect for the success of a coin. I personally have not ever heard of Mintpal before and never cared much for poloniex, but will send both exchanges emails ASAP. All help is appreciated, the addresses are
support@mintpal.com and
poloniex@gmail.com 
Well, I am not endorsing either exchange, I am just saying that while Mintpal is new, they have attracted a lot of business. I do like the exchange (so far) as well, but the reason I mentioned it is that a community can get on there with enthusiasm -- no fee required.
So, you can email them, I guess, but there is a voting tab right at the top of their homepage. Just hit that button and you guys can vote and will see all of the results as well.