I'm just experimenting with a new placement of AdSense ads to see how it goes. The CTR doesn't seem to be anything special, average about 5% (hope it isn't against TOS to quote this, let me know if it is) but the ads blend in nicely but still stick out. A couple of examples are www.lessthanjake.info and www.sufjanstevens.info - see the banner merged between two images to create one larger image.