Just-launched crazyegg has an interesting twist on site traffic analysis – the emphasis is on where users are clicking on your site, with an eye toward enhancing design to match visitor behavior. The heat map shown here shows area of highest clicks in warmer colors. Other views display similar perspectives, but numerically.
Contrast what crazyegg is doing with heatmaps to what the Poynter Institute does with them — both let you see where visitors are focused on a given page, but Poynter does it by watching your eyeball with a laser as it moves across the page, while crazyegg focuses on actual clicks. Which is a better metric of actual attention? Probably a pointless question, since not all attention points need to be clickable.