http://doc.bazaar.canonical.com/bzr.dev/en/user-reference/authentication-help.html
How to save usernames / passwords so bazaar doesn't ask for them every time. Handy.
https://launchpad.net/~bzr/+archive/ppa
Bazaar (bzr) packages, bleeding edge, for every supported distro. Handy for installing bzr 2 on Jaunty.
http://info.wsisiz.edu.pl/~blizinsk/git-bzr.html
A helpful guide to using bzr as a client for subversion repositories. Or branching from subversion and then recommitting to subversion while managing intermediary changes in bazaar. The article also covers cvs in the same depth.
http://www.redmine.org/
Redmine is a project management / bug tracker / etc written in Ruby on Rails. It supports multiple CVS back ends including SVN, CVS, Git, Mercurial, Bazaar and Darcs.
http://bazaar-vcs.org/
Bazaar is a distributed version control system available under the GPL. It supports upload of repos by ftp, rsync, sftp, etc. Repos can be hosted on a standard web server or by a bazaar specific server.