One of the interesting features of technologies is how it can bring people close together, in real life as well as in perception. Google has an interesting new feature called Google Latitude. Through this service you can show your location to your friends and of course see the location that your friends are sharing with you. Interesting feature is that the application has a fine grained way of setting your privacy in relation to the various friends that you have. This I think is a general direction you see in web 2.0 that more and more people are becoming concerned about privacy and about who really are your friends you are willing to share all. In the past I used an application called IYOUIT that was also capable of showing this like this. To me it was surprising how much feeling is involved in knowing precisely where your friends are.