So I have never been a user of LinkedIn. up until last week. I think that LinkedIn is a way of dealing with business contacts so I am trawling through all my business cards from the last year or so and trying to connect to them in LinkedIn. I have no idea if I will actually get any benefit from this but I am going to give it a try, updates to follow.
I also sent out a question to the twitter folk to see if they have any ideas on this being a good or bad thing.