Adsense

I'm trying out Google's Adsense, the ad program. Not that I've written (or write) about anything that'll fetch me clicks and / or money. (Except for the big 'Get Firefox' button on the top -- I really want people to start using FireFox.) I just want to know what ads they display and how.

I've experimented with them for may be a month or two now. Changed layouts, sizes, colors, etc. This is just for my experimentation. If you think they're too obtrusive, please point it out and I'll do something about it.