A few weeks ago, I received a ~60 page binded booklet from Google on Adsense optimization, with explanations on heatmaps, color schemes and so forth. Anyone else got it? Nothing in there that I didn't already know, but it was a nice gesture, I thought. I can post pix tomorrow.
Cool.. they are now starting to sense the competition and want to stay in the good books of publishers and a step ahead of competitors, although I think no other publisher network is close to adsense.
I have yet to read it all, but generally, it seems to be similar to what they already post on their site as guidelines, just more in depth.