Have to run to get the new "the economist", there seems to be a interesting article in the print version:
Here you find the online version.
update: I just bought the magazine, there is a lot more to read (kann ich nur empfehlen!). Hier ein Ausschnitt aus dem Inhaltsverzeichnis vom "Survey of new media, April 22nd":

• It's the links, stupid - Blogging is just another word for having conversations
• Compose yourself - Journalism too is becoming interactive, and maybe better
• The wiki principle
• Heard on the street - Podcasting will change radio, not kill it.

This is the link to previous surveys
Listen to the Podcast / Interview with Andreas Kluth