I suggest you try to increase the CTR. You need to find the best combination of ad units and ad placements. 336*280 ad unit works really well. 250*250 is also a good choice.
I have some ads that are placed within the text and, on certain pages, I have a skyscrapper on the right side of the page. You are right 010081, I have had some income come from my affiliates. Haven't tried Youtube yet but thats going on my to-do list. All this might not even matter if I get banned when reach $100.
I think youra adsense looks like ads, the visitors don't click them. You should make the adsense not like thd ads at all. Try to change the color, position of your ads.