I think you should increase the number of ad units on the home page, if that is possible. Also, I suggest you try different ad units and place them in different placements. Your CTR looks low, so try to increase it.
there is 1 ad in the sidebar on every page. the ecpm is garbage, im just going to take the ad soon not worth it for a couple pennies (am i revealing too much already) theres an ad on top and bottom of each article i get 30k impressions 15-20k uniques