I'm planning to blog a bit about online marketing in the next couple weeks. Despite so much interest in engaging customers in 'conversations' - online activity for many brands still seems to be a mix of banners and some search marketing. They play a part of course but if that is all we are doing, we're missing out.
If you are involved in online ads, this short article might be of interest. Essentially it claims that the myths of making sure your content and ad must be above-the-fold (viewable on the first page of a website) no longer holds true these days. You may be better off with your ads within or beside the content, next to comments etc.
It's a short article and worth a read.