Halocharts

Speaking of Halo: Reach, I found a pretty cool site for tracking your progress.  Right now it's not as updated as Bungie's site, however soon they'll have rankings and they already have a leaderboard up for people signed into their site. I prefer it myself over Bungie.net, although they don't have the heatmaps or the ability to find every single stat for one game, but they do have a pretty cool community and even their own mini game based off of the halo universe called Halosphere.  Check it out some time.