Do you use
Google AdManger?
It's somewhat hard to get accepted to their beta program, but once you are in you're in heaven

As we do not have a big-board-forum here anymore I am writing in this forum. What I am asking you is how do you deal with placing AdManager Code in your styles? Usually you only have to include one html tag in the style where ad will display. But in Google AdManager you have to include one html tag in header template, and one html tag where you want it to be displayed. Did you write a script to only put body-html-tag into one custom style and then auto-fetch these information for head-html-tag? Thanks.