Advertisement placement is 1 of the most important part where people always under estimate the importance of placement.

1. Text or picture? To me, picture ads is useless. When you setup your ads in Adsense, make sure it displays only text ads.

2. The best performance ads size is Large Rectangle (336 x 280).
Place it before and after each post. (You might need to edit the theme)

3. Background color. Always try your best to blend in your ads to your article. Blend in perform much better than stand out.

4. You may have offers/products on the sidebar but usually they won't perform well.
If you can make the offers/products on the text link, that's much better.

5. Ugly doesn't matter, as long as it performs.

6. When someone visit your website and cannot find what they want, they will either close the Tab or click on something related.
If that something related is your ads, bingo!


* TO DO NOW: Apply ads and affiliate offers to your blog.