Comment by wtallis

I'll give these suggestions a try. I can't promise I'll be able to use all of them, because our site uses a disgustingly archaic CMS that's as likely to mangle markup as not (hence why I haven't even attempted to do the graphs in SVG or anything like that). The publisher's IT dept really only cares that the ads still show up in enough places, not about giving us a useful tool to work with.