I was wondering of any of you how well or not well as the case may be, Ads (authors book ads) might be expected to do on a site like
SearchWarp Writer's Community for Do It Yourself and Current Events Commentary
if you see the articles, in top right hand corner there are often authors book Ads, and I was wondering if you thought this was a good way to promote books or not and if not why and if so, what sort of Ad would work well here?