PktLoss writes: "We wanted to map our how far apart cities are on the Internet, in milliseconds. With servers in 66 cities pinging each other we felt we were in a unique position to do so, and blogged about it last year. Now with more resources, and the data of 18,414,600 pings we've published the hourly updated data."
PktLoss writes: What do you do when you've got a lot of servers and a splash of curiosity? You make them all ping each other (then re-write that script so it doesn't take 10 hours) then map that against the physical distance between servers. What you come up with is some pretty charts, and connections that hit 70% the speed of light.