If, unlike me, you're an avid follower of the world's most popular game, you'll appreciate this:
footiemap.com has maps that show the locations of the major teams in all the big footballing countries, from England to Argentina - as well as many of the sport's lesser powers, such as the Faroe Islands and the United States. It leaves a lot to be desired in terms of layout and user-friendliness (it's inconveniently unzoomable), but for a sport that seems to engender a lot of cross-border fan interest, it can be useful.
Aston Villa: where the hell is it?