The decline is stunning. "Last year's ad revenues of about $21 billion were less than half of the $46 billion spent just four years ago in 2007, and less than one-third of the $64 billion spent in 2000," Mark Perry writes. In the next few years — and hopefully, in the next few decades (I like print!) — we'll see papers and magazines continue to invest in their websites and find advertising and pricing models that support journalism independently. Otherwise, one hopes that rich people continue to be fond of paying for the production of great writing on bundles of ink and paper.