I found out about this plugin a few days ago in the wp-hackers mailing list where the author is basically asking for some feedback.

Groups provides group-based user membership management, group-based capabilities and content access control. It integrates standard WordPress capabilities and application-specific capabilities along with an extensive API.

A while ago, WordPress introduced custom post types. It is a great feature as we can now break free from the default post types (posts, pages, revisions, attachments and nav menus) and turns WordPress into a true CMS. Thing is that in order to create new custom post types, a lot of typing is involved. Personally i have created a skeleton post type as a snippet in my favorite editor but there’s one more solution for this (without using plugins). It’s called WordPress Custom Post Type Code Generator and it let’s you do as the title suggests. Generate the code needed for a CPT. Bookmarked!