The real growth in blogging and syndication is amongst Xanga and Livejournal users and these systems are walled gardens. RSS and syndication are an anathema.
Good lowdown on Zephoria:
“[young people] use the Profiles in IM to find out if their friends updated their LJs or Xangas, even though they are subscribed by email as well. The only feed they use is the LJ friends list and hyper LJ users have figured out how to syndicate Xangas into LJ.”
apophenia: a culture of feeds: syndication and youth culture