I wouldn't concentrate on advertising right now...There is a more of work still to be done to clean up this coin... to make this coin more professional and presentable.
The main thing is cleaning up the presentation and online information for this coin.
Reddit still says there is a premine on the sidebar.
Github Mintcoin code comments still says there is a premine.
Premine references need to go.
Get rid of the little animation on the main website that has an outdated mintcoin logo.
The second thing, is to release the Android wallet, so we can actually share/use Mintcoin with people anywhere, on the go.
Then get the NGO released too.
The Android wallet, and NGO have been promised for a long time, yet nothing has been delivered. This is the reason why the coin is so low...no progress/development on the infrastructure surrounding the coin. Deliver on these things, and things will turn around. I'm looking forward to it, just some people probably lose patience.