Thanks to Peter for a tip on this cool app that shows loads of potential... visited states let you create a map that shows what elese??? States I've visited.. cool! Below is my visited states map (red shows states where I've been). Be sure to check out the developer's website for pointers to tons of cool mashup projects - see http://douweosinga.com/projects
create your own visited states map
or check out these Google Hacks.
Below is my Countries Visited map!
create your own visited countries map
or vertaling Duits Nederlands