There are many different systems related to Debian that are related to the efforts. Some of these target information to/from upstream developers, some to end users. Here are some useful links.

Developer Packages Overview
new system!
Bug Tracking System
also see ?BtsFiling, use a URL like http://bugs.debian.org/bug-number or DebianBug:number in a topic using the ?InterWikis format.
Package lookup
also use a URL like http://packages.debian.org/package-name or DebianPackage:name in a topic.
Package Tracking System
PTS:name in a topic. Email based tracking system to get notices of all package activity - used for packages that highly interest you. This is a new system for Debian and was recently announced.
Package & Maintainer lookup
from Takuo Kitame
Buildd System
system to compile and upload binary packages from source automatically.
Maintainer LDAP
LDAP directory with the information of Debian developers.
testing "update excuses"
not needed for Hurd yet.

-- ?GrantBow - 15 Jan 2003