Hi all !
The Public Domain Working Group http://publicdomain.okfn.org/ and the Open Bibliographic Data Working Group http://openbiblio.net/ of the Open Knowledge Foundation http://okfn.org/ have started the drafting of a Bibliographic Metadata Guide. The goal is to produce something that can be hand in to various GLAM institutions to help them setting up a proper metadata model for their works. We want to provide them a few simple steps that illustrates the best practices (or second-best practices) in terms of bibliographic metadata for each category of works.
The current draft is available here http://en.wikibooks.org/wiki/Bibliographic_Metadata_Guide
We would like to involve the Wikimedia community in this project, so please feel free to contribute it any way you like, and if you know someone that might be interested in contributing to this guide, please don't hesitate to forward the link to them.
Also, are also trying to set up a small task-force of contributors who would be assigned specific sections or tasks. If you are interested in joining the task force, please don't hesitate to contact me.
Thanks !