Dana Blankenhorn has an excellent post on the demise of newspapers as we've known them and the future of publishing in general. Here's the money quote:
Your job, as a publisher, remains what it was in the 19th century. Define a market, aggregate both the buyers and sellers, and stimulate financial transactions between them. Publishing is a market-making proposition, and those who create the best marketplaces win. Every time.
These are still the early innings of the online publishing game. The collapse of newspapers is a gift from above, not a plague. It opens up vast new opportunities for people who have learned their business, publishers and editors both.