Ben Goldacre sorts out the desperate trouble newspapers are in:
The comments threads beneath your articles will always be rubbish, because the community is too large. Nobody will read the other comments, there is no discussion, and there is no shared pool of knowledge ... linear comments - for communities that pull millions of visitors - can never produce interesting conversations.
If you do a podcast, do not make it like an even cheaper version of commercial radio. We already have bad commercial radio.