I just got GLD added to the public voting page of MintPal:
https://www.mintpal.com/votingMintPal is a new crypto-currency exchange site. It just got launched this month and it appears that they have a very responsive support team.
Periodically, they will select the top coin from the list and add it to their website. Unregistered users can vote for 3 times per hour and registered users can vote for 6 times per hour.
Also, each 0.00005000 BTC sent to 1HN2bw9y7mBRoWdi3ceGLfMfV71fYSJWon will count for 1 vote for GoldCoin.