The two important constituents for any blog that make it shine are niche and of course the adsense surrounding the blog. Even if the niche is good and suppose if the adsense does not make money for you then the blog does not shine.
Would have to agree - I think the placement of adsense is vital to making lots of money!
If you have a stand out adsense - people will not click it - if it blends nicely then you are onto a winner!