Hello - Today I came to know that google recently removed restriction on placing only 3 ads per page as per this policy: https://support.google.com/adsense/answer/1346295?hl=en
Bloggers are free to place more than 3 ads as far as advertising and other paid promotional material added to your pages should not exceed your content.
Because of this I've placed 4the ad slot on Crunchify. Let me know if my interpretation is not right.
What is your take on this? Please chime in and let us know.