I'm curious how much work/how feasible it would be to extend Drupal to have a more flexible based group permissions system. I understand that you can setup "user roles" and assign a user a role, then define that roles permissions.

We are currently working on a redesign of Drupal's administration pages; the goal is to improve usability for both novice and experienced Drupal users.

I wrote a wiki module for version 3.0 (it was working but still needed some more development) and am wondering if it is worth updating it to 4.1 I stoped development mainly because I dont have a wesite to host a site on and because I found that

The new Recommendation Module for Drupal is a "collaborative filtering" engine. This means that the module predicts interesting nodes, according to your personal tastes.