I just signed up for an account on Frappr, which is a service which allows you to create a map of the geolocation of your friends or other communities. There’s a Mozilla community; do sign up and join in.
Having added myself to that, I clicked on “Gervase Markham’s Frappr” at the top of the page. I was presented with a page that had a map of Europe on one side, bare apart from a solitary blue pin stuck in London, and a big heading on the right side which said: “Currently you do not have any friends.”
LOL! They could at least have said “…friends registered on Frappr”!