After tips from here, i did increase the ctr. now give more advice.

pls take a look at my site.

the rectangles at the top-left and bottom of article i think is ok.
but, is the skyscraper a good placement?

i will appreciate all replies here.

 

What about changing it to an image ad only? Since there's so much text in your blog and its also lacking images so people might focus on it.

 

o,good, i never think of that.
maybe i should try, and see the effect.

 

i found that the image offen not show up, and is not consistent with article content.

so i just put a 200*200 image on the side bar, not expect it can bring payment.