I actually don't mind having ads on the right - many of them are interesting (based on years of training your ad engine via clicks :-)). However, sometimes I see something go by that I'd like to investigate, but it's gone before I have had a chance to click on it (e.g., a particular guitar advertisement). I wish there were a "back" button, like in a browser, so that one could see the ads just shown (or recently shown). Seems like a feature that would get you more clicks and therefore more click-thru income from advertisers...