We all know that Google now wants webmasters to nofollow links for all the paid text links or sites will get penalized, but what about banners? Should webmasters use nofollow in the paid banner/image links too? I have seen many major sites that do that and other that do not so I'm confused!
webmasters will only advertise on do follow websites if they want to get the link juice and higher pr, if you want to get targeted traffic, do follow or no follow is not a matter. just depend on what you want, traffic or pagerank...