How do you navigate around the wide variety of online communities in existence? Well, you need a map. Click the image above to see the full size version. It’s an excellent graphical representation (initially from here) of how different online networks relate to each other, and which have the greatest weight. With the exception of Facebook I find myself firmly in the southern part of the map. If the map is not enough, I suggest The Guardian’s Latecomers’ guide to social networking online.