In reply to Harold Jarche » A few good books.

Elgg/Drupal/WikisHarold, Thanks for the comments re the new metaphor provided by Elgg -- one of the things I enjoy about Elgg, and one of the things that makes it so easy to use, is that it really does lower the barrier of entry. I find this particularly true relative to Drupal sites. Don't get me wrong -- a well designed Drupal site is easy to very easy to use, but because of the flexibility of Drupal, rarely will you see two sites that behave the same way.
You also mention that you implemented automatic community wikis alongside Elgg communities-- I've been experimenting with using Elgg as an intranet at the high school level, and I have been looking (unsuccessfully) for any documentation about how to make this work -- any pointers? Thanks, Bill