Dopplr is a service that lets you share your travel schedule with friends and then highlights times when you and your friends will be in the same place. For example, if you're traveling to Las Vegas in December, Dopplr will tell you if any of your friends are going too. OK. So yesterday Dopplr started sending out "Personal Annual Reports" to all of its users. The report shows what friends your travels coincided most with, where you traveled, how you traveled, and your carbon for 2008. What a great idea.
Above is a report for Barack Obama. It should surprise nobody that Joe Biden tops the list on who Obama most coincided with, and then John McCain follows in a close a second.