The Guardian have put up something rather wonderful: an audiovisual tour of the Caledonian Road in London. It combines words, commentary and pictures against an interactive map, and you really do get a feel for the place. As oral historian Alan Dein, the man who put it together, says:
The availability of cheap, increasingly sophisticated technology has meant that sound trails have become increasingly more popular to make and distribute. Hopefully, we in turn will become more and more adventurous in the way we interpret and disseminate the stories of the places around us.