I wanted to determine the relative SEO value of the advertising links passed by this website: http://www.garden.org/
On the right side you'll notice several advertising banners that, when clicked, redirect you to the appropriate website. If you inspect any of these banners you'll notice that while the a href has a bunch of the usual ad garbage in the URL, there's nothing in there that's
Why is it that when I check out any of these site's backlink profiles (via opensiteexplorer) that I can't find any trace of backlinks from garden.org?
Very new to SEO, please be kind. :)