I started blogging in 2005.
In April 2007 I was among the "first" to join Twitter and FaceBook in Norway.
The history of these social networks are well known. Now there is another tool that can be recommended:
The ap.net is still in it´s Alpha version, but over 20.000 people world wide have already joined this real-time social feed without the ads. (About 20 persons in Norway I think)
It costs you 35 NOK to join, but that is only 50% of the price of a pint of beer (if you are on the right places in Oslo), so why not be among the first to test it out. It is here to stay.