There are now two different types of ads on here rather than just the one that was there before. Neither will make me any cash of course, it is just a matter of trying out new things and seeing what they do. (I added ads to this site for the first time a few weeks short of a year ago, and I have yet to make my first $20, although I'm close!)
You'll randomly get one type or another on each page view. Woo.