http://www.debian.org/doc/devel-manuals#devref - Debian Developer's Reference
This document is a reference manual for everyone working on Debian development, whether new or old to the project.
This manual describes procedures and resources for Debian maintainers. It describes how to handle our bug tracking system, the mailing lists, how to become a project member, our upload procedures, translations, etc.
Debian Developer (DD) is our name for a Debian project member. A Debian Developer has many rights regarding the Project. One of the core rights is to be able to vote in General Resolutions the project may adopt, and to elect the Debian Project Leader.
Many Debian Developers work on packaging software for Debian, but others contribute to the project's work in many different ways, such as by working as translators, maintaining the websites, maintaining the Debian Infrastructure, etc… All types of contribution are very welcome.
When appplying to become a Debian Developer, one can choose whether or not they wish to have an upload right to the Debian archive. In the case they wish to, they'd have to go through the packaging-related parts of the Debian New Member process.
Becoming a Debian Developer
People who want to become a Debian Developer should have a look at the dedicated pages.
As a DD (i.e. a Debian Member) you're eligible to several benefits, including special discounts for some services.
debian-devel-announce: this is the only mailing list that it is compulsory for Debian Developers to read
debian-mentors: help for new package maintainers
debian-devel: discussion of technical development topics
debian-project: discussion of non-technical aspects of the Debian project
Debian Developer's Reference, a manual for everyone working on Debian development, whether new or old to the project.
Developer questions can be found (and hopefully answered) at DeveloperFAQ.
A collection of DFSG-compliant licenses has been started on DFSGLicenses.
A collection of useful links for packaging libraries for Debian can be found at LibPackaging.
Information about Debian Developers
https://www.debian.org/devel/people - current package contributors listing
account database - database of Debian members and guest accounts
Debian Developer's Portfolio - resources collecting per-developer information