Here is an example. Fred Wilson's visualization - http://weeplaces.com/fred-wilson/

Or Harj's - http://weeplaces.com/harj-taggar/ - he checks into YCombinator a lot.

Beautiful maps, where do you license them from? Is it expensive? Also, did you map the neighborhoods yourself or was this data available someplace?

We're using a desaturated version of the Pale Dawn map style [designed by Stamen] from Cloudmade.com -- check them out, most usage is free!

Oh, it's not a site to show where the nearest restroom is? :)

These are really beautiful maps, and a nice game. I'm sure you're on to something much bigger with the company you're building, but many users will want to just show off where they've been all the time, and please don't take any offense if I say that this feels like "web2.0 onanism" to me.

Great point. We built it this past weekend as a 48 hr project, but the bigger vision is to create connections and conversations around locations. Thanks for the feedback!

wow, if you did this in 48 hrs, I'd love to see more! Will follow you guys on twitter :)

Cool little trick and interesting to see how little I actually check in! I've heard a few privacy concerns, but if I wanted my location to be private, I wouldn't check in on foursquare.

You can actually make your WeePlaces map private (click the little lock icon) or delete it entirely. We're introverted hackers and care about privacy too.

Your /venue/ links don't seem to be working but this is a great little toy, works much better on someone with a lot of checkins.

Support for gowalla coming?