Old Engagement Team pages which are no longer actively used, but which contain a lot of useful information.
Tasks - old list of tasks for new contributors; needs updating if we want to use it in the future
List of GNOME deployments - not updated for a while
The old GNOME Ambassadors program - this is no longer active, but could be interesting in the future.
Testimonials - endorsements of GNOME tech by users and distributors (really out of date, would be nice to pick up again).