Having just been invited by NZChrissy to join TokBox I thought I'd give it a go. So I did. It looks fun and as aways the more the merrier. Have a listen to what Lauren from TokBox has to say here. You can "hear and see friends and family right now through video chatting, say a quick hello to friends with a video message, or invite a group pf people to chat face to face. " I can see some possibilities for PD among regional groups here, as well as fun and networking.
Something that is also for fun and educational (I am learning where the states are in the USA in more detail now) is My Tweet Map, which I love. It shows where your friends' tweets are coming from on a map in real time. Thanks to Sue Tapp for letting me know about that.