I was looking for options to inject Google Adsense ads into my Drupal blog. There are few modules and tactics available. But today I found an excellent module - Block Inject.

The Block Inject module allows for regions to be created and injected in the middle of chosen node types.

You can create any number of regions to inject as well as select as many node types you would like these regions to be injected in. The blocks you assign to these regions will then appear in the middle of the body field of these node types if the number of paragraphs is bigger than 2.

Download it here: Block Inject

Here is example of injected Google Adsense into middle of content:

I tried to install latest dev version, but that break things up, so I stayed with alpha version.

Update: You might try latest version now (This module have been updated on May 23, 2015)

P.S. If you are considering a hosting for your Drupal website check out Bluehost, their shared hosting starts as low as $3.95/mo or read more about cheap Drupal hosting.