Where I've been so far (as of July 2012):

create your own visited countries map

or vertaling Duits Nederlands

create your own personalized map of the USA

or check out ourCalifornia travel guide

create your own personalized map of Canada

or check out ourVancouver travel guide

create your personalized map of europe

or check out our Barcelona travel guide

create your own visited states map

or check out these Google Hacks.