It’s basically a thorough history of podcasting (including the coining of the word) and a look at it in relation to what we normally consider broadcasting. The conclusion sums up what I think many have been thinking for some time:
If we free the term broadcasting from its corporate connotations and remember its longer history, then podcasting is not simply an outgrowth of blogger culture, but rather part of a much longer history of dissemination. Podcasting is not an alternative to broadcasting, but a realisation of broadcasting that ought to exist alongside and compete with other models. If broadcasting were a more generally available term, then perhaps we could begin to speak of our own broadcasts without sounding grandiose or pretentious.