Adsense placement is very important. I read about it and Adsense bloggers told me about it but due to SS, I have to remove the adsense from one of my blogs and I don't see any Adsense income from that blog anymore. I still have Adsense but it is on my sidebar. The most clicks come from the Adsense in post.
From today onwards I am not going to reserve or accept any assignments from SS. Not that I got a lot of it; like 2 a month only.
I'd rather loose from SS and gain much much more from Adsense in long term.