According to some guide to user in digital point, i have a total makeover to my site. Please see it.. Computer, lifestyle and Me.
Did someone tell you to put the single ad units that close to your text comments? I'm not saying it's good or bad because, I don't know, but they seemed a little crammed.
I still think you would be better off putting a medium rectangle in between posts instead of cramming a button into your posts.
i belive the large rectangle converts very well when placed in the article. So try replacing that single ad with the large rectangle