We seem to overlook the past in our excitement about the future. Yesterday was spent listening to many people discussing the merits of all these social media tools for the Web, but there was little discussion about what has led us to this point. On the way back, I noted that early community building using the new technology, radio, was a uniquely Canadian accomplishment. Educational broadcasts to engage local communities began with farm radio in the 1930's and later Farm Radio Forum (1942).

More here:
http://jarche.com/2005/09/OLD603/