b2evolution

All you need to do is put the cursor where you want the AdSense block and click on the AdSense toolbar button. The plugin does the rest.

Additionally, the plugin will also make sure that you do not display too many AdSense blocks on your page. For example you can set it to expand a maximum of 2 ad blocks in the blog posts and have a 3rd one reserved for your sidebar.

b2evaluation.com site is very useful site for all about adsense.