I gues you have to VOTE on cryptsy to get the NLG listed there.
NLG is not listed there.
I guess DEV needs to contact Cryptsy about beeing listen on cryptsy.
Only thing i saw on cryptsy is this :
https://www.cryptsy.com/coinvotes/Getting listed on Cryptsy would surely spike the coin's value...
Cryptsy known to only add coins that give bribes or have very good volume. Paycoin has been dead for 5 months and still on cryptsy, the dev even told me in PM that he had to pay them btc to be added.
Mintpal is ok option but only high volumes for a few coins, bittrex is best exchange.
Exchange that offer USD/NLG might be good?