Did you see your PageRank increase after joining the Coop? I would like to know if the ad network links helps your pagerank in time. Victor
Yes it has on at least one page I got 1000+ new coop links to. Homepage stayed same so pretty definite it's a bonus unintional side effect of the coop.
backlinks from co-op do pass PRs, but most of those pages are PR1 or PR2 and there're many links on each page. You'll hardly notice any PR increase on toolbar.