Digging around for educational uses of Facebook, I found this which is quite interesting, particularly in the later slides. I liked the reference to Leisa Reichelt's ambient intimacy (but not sure whether I agree). I also liked the mapping of different kinds of spaces which you can find on Flickr. And, oh dear, I just missed a deadline and that's something I hate doing. But then again I reckon 24 hrs late is more or less OK!