Google adsense is one of the residual income providers in the internet.It can provide you enough to meet all your needs if you perform it in the right way.Adsense earnings greatly depends on the click through rate CTR of your website.Generally to receive maximum clicks your adsense ad block should be placed such that it receives maximum exposure.Let me say some few suggestions that i learnt experimenting in the last two years.

1.Place your ads where user is easily able to view.for eg.above posts,below content,right sidebar top.

2.Header ads perform poorly if all your content is placed at the bottom.so place something for user involvement at the top.

3.300×250 ads with larger fonts perform best if it is placed above the posts below title.The ads should match other links in your website.

4.Use google search box for an good extent.It has an great income potential.Provide an option to search the entire web which gives an better earning oppurtunity.

5.Dont always try to display 3 adsense units if it looks like clutter.The revenue depends only on the number of clicks and not on the number of ad units displayed.

6.colour your ads title matching your site.

7.make sure to use link units in your site.It has an high click rate.

8.Do not use too many adnetworks in a single page.

9.Update your site regularly.Varied contents give a number of clicks.

10.Ads inside content should be always text ads.Image ads perform poor inside posts.

These are some tips to increase your adsense earnings.But keep in mind,More is the number of visitors,More is your earnings.