CIFS

Samba CVS repository
Publicly accessible CVS repository for access to the source code of several packages. Includes instructions on how to view the source.
http://pserver.samba.org/

Samba.org: Mailing Lists
Mailing lists and archives for the Samba project and some other free software projects.
https://lists.samba.org/mailman/

Using Samba Book by O'Reilly
HTML version of the book.
http://www.oreilly.com/catalog/samba/chapter/book/index.html

What is SMB?
A document on the SMB protocol.
http://samba.anu.edu.au/cifs/docs/what-is-smb.html