We actually have been very active marketing wise. We have several advertising campaigns (around 20) running and already pre-paid for (probably around 2K USD total). Around 30% of our visitors are coming through some kind of payed campaign, so that's actually quite reasonable.

A few that pop to mind (there are many more)
cryptocoincharts.info
cryptocointalk.com
altcoincalendar.info
cryptocoinsnews.com
coinmarketcap.com

We've partnered with coin developers and have given away around 1-2 BTC worth of free comps. That's a major acquisition channel as well.
We also have been highly active on twitter since day one, and have currently 331 genuine followers.

Most of the marketing we did however is free. We are currently visible in every community of each coin we have in our market (bitcointalk/reddit/twitter/forum/cryptocointalk).

There is probably more I forget to mention now, but the baseline is that on the contrary we have been highly active in the marketing departement.