Sky Render on 13 April 2008
If I may suggest (and hopefully you're not too terribly angry at me at this point), text-based ads tend to work fairly well. Google uses them to great effect, since they're unintrusive enough for sorts like me who cannot handle moving elements on an otherwise static page, but are still quite visible and able to draw the attention of users.
Sky Render - Sanity is for the weak.
