Social bookmarking officially went mainstream in the UK yesterday when the BBC added Digg, del.icio.us, reddit, facebook and StumbleUpon buttons to the bottom of each story.
As you would expect from the BBC they have created a nice page explaining about the services which is always a good idea if your readers are not social bookmarking users already.
Thanks to John from Silvelox Wooden Garage Doors for the tip.
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