Great kicker on Paul Krugman's column today. The column is about how the digital age has made intellectual property such as music, print and software so easy to copy and share for free that content producers are having to figure out new ways to make money. He references a Rolling Stone article, "Rock's New Economy: Making Money When CDs Don't Sell," and notes that the Grateful Dead pioneered free content by letting people tape the concerts. The free content increased the fan base, which let the Dead make more money on T-shirts and concert tickets.

This is the wave of the future for book publishers, newspaper publishers and musicians alike, Krugman says. He closes the column with: "In the long run, we are all the Grateful Dead." Get it? It's an economics joke. For the reference, see here.