my experience with co-op network. 01. links/ads are appear on my site, but i'm not sure my site/ads appear into co-op network(how to track this) 02. nothing to do with Google Adsene. ok sound good 03. i'm not sure if this kind of links farm (because link is just a link, no other info) 04. Are this system will help in PR up or down 05. how do i know, backlinks are comes from this system. 06. about the link/ads. which attributes it support? nofollow or dofollow? i think google robot doesn't like dofollow attribute. am i correct. anyone know the answer to above question? this will help all. thanks.
Be advised though!! Google have banned many sites because of using the Co-op Ad Network. If your going to use it place the code on a less important site for you and then point your ads at the Site you want to gain strength for. The last thing you need is getting your site banned after having it well placed for a few years!!! Just a thought.