In a recent podcast, Russ Robert and Peter Boettke discussed Ludwig von Mises (famous for Austrian business cycle theory, among other things). They then compared Mises to Hayak, saying that "Mises was a 19th century economist who communicated via books while Hayek was a 20th century economist who communicated via journal articles." To me, the next step is obvious: 21st century economists communicate via blogs.
That said, I use books, articles, blog posts, op/eds, emails, twitter, audio, video and live conversation to get the message across -- there's nothing wrong with using as many channels as possible.
(Posted @ 11:11 on 11 Jan 2011 :)