Tom Coates has a great post on How to build bubble-up folksonomies based on the work he, Matt Webb, Paul Hammond, and Matt Biddulph had done for the BBC. I have been hearing about this work for a while from these Coates and Webb and it was really nice to see such a good write-up (very good to great write-ups are the norm for Tom).

These guys at the BBC have been doing stellar work the past few years around social software, emergent technologies, and mobile interaction. With Matt Webb gone (he has formed his own stellar design firm Schuze & Webb) and with Matt Bidulph moving on it will be interesting to watch how the BBC keeps up its pace of great work out on the forefront of technology and interaction design.