I found Dopplr a middle of 2008 and thought it was just a niche social network centered around travel.  I added some trips, didn’t find any friends and added an app to my facebook.

Then I recieved my Personal Travel Report.  What an amazing service!  I really like visualizations of data and this was most of my big trips visualized.  Plus, it gives you a footprint calculation for the year of travel.

Here is some more information on Dopplr travel reports.  They take travel data from the presidential candidates and plug it into their system.  Pretty interesting stuff.

Try it out, and friend me on Dopplr while you are at it.

Dopplr Personal Report