Ubuntu for Debian Developers - Information that would be useful for Debian Developers and contributors for working with Ubuntu.
Debian for Ubuntu Developers - Information that would be useful for Ubuntu Developers that wish to cooporate with Debian and need information and best practices on how to work with Debian.
Debconf - Whiteboard for coordinating discussions at the Debian Conference.
Debian Bugs - Interacting with debbugs, forwarding bugs and patches.
User Tags - Using BTS usertags for bugs submitted by Ubuntu developers.
Presentations - Talks at conferences, relevant to the Debian/Ubuntu relationship.
Debian/PythonModulesTeam - Getting a package into Debian through the Python Modules Team
Debian Derivatives Front Desk - This group helps developers of Debian derivative distributions to contribute their changes back to Debian