Robin Good has published an extensive (93 page) review of group blogging software. He very clearly identifies the features and functionality that is important to group blogging as well as several scenerios where group blogging is used.
It was no secret that Drupal.org's download pages were sub-optimal: we had two views, one by version and one by download type. This was a left-over from project.module's old browsing structure.
Dan Gillmor is a prominent journalist, author and commentator on technology in the San Francisco Bay Area (Silicon Valley), known for his technology articles in the San Jose Mercury.