Darwin
Darwin Developer Documentation, Darwin Operating System, DarwinPorts, Fink, Getting Started With Darwin/x86, Hexley the Platypus, HMUG Man Pages, MetaPkg, Open Software in a Commercial Operating System, OpenDarwin
FreeBSD
Applications, Companies, Development, Documentation, Personal Pages, Prominent Users, User Groups, FreeBSD, FreeBSD Ports, Fresh Ports, Internet Relay Chat FreeBSD Hackers Net, The FreeBSD Foundation
NetBSD
Development, Documentation, Vendors, A Brief NetBSD Tutorial, Benchmark Comparison of NetBSD 2.0 and FreeBSD 5.3, Benedikt Meurer's NetBSD page, Emmanuel Dreyfus' publications, hubertf's NetBSD page, Interview with Jay Michaelson of Wasabi Systems, Jesse's NetBSD Page, My Journal of NetBSD Experiences, NetBSD Developer Resources, NetBSD Forums
OpenBSD
Advocacy, Companies, Development, Mobile, News and Media, People, Security, System Administration, emBSD, FreeOS:OpenBSD, MultiBoot - OpenBSD and FAT/NTFS Windows, O'Reilly - OpenBSD Explained, O'Reilly Network: OpenBSD in a Datacenter Sca, OpenBSD at work, OpenBSD In Japan, OpenBSD Journal, OpenBSD Mailing List Archives, OpenSSH
BSD At Work
A resource dedicated to providing timely information about the BSD operating systems with commentary and reviews of software and hardware.
BSD DevCenter
Tutorial articles, columns on BSD from the people who bring you O'Reilly Books.
BSD Driver Database
Database of hardware device drivers being programmed for open source BSDs.
BSD Forums
BSD Unix discussions, message boards, help and news. Covers all BSD operating systems.
BSD Mall
An online mall for all BSD needs. Everything from operating system CDs to BSD supported hardware is available.
BSD Resources
Software, documentation, resources, news. A useful resource directory for using, installing, and maintaining all BSD-type systems.
BSD Search
Powerful BSD search engine combining tools from the Open Directory, Google, and GreasyDaemon.
BSD Support Forum
A searchable BSD support forum where you can get your problems solved. Ask questions and get answers.
BSDSearch.com
Search engine and directory for BSD. Features: gatewayed mailing lists, chat, news from Daemon News, BSDToday. One of the largest directory and information sites for BSDi, FreeBSD, NetBSD, OpenBSD users around the world.
Daemon News
Monthly BSD ezine, covering FreeBSD, NetBSD, OpenBSD, MacOS X, and BSD/OS. Articles and regular columns on all aspects of BSD. For news, ideas, code, opinions, and all things BSD, turn to Daemon News.
Daily Daemon News
Daily dose of current BSD news on BSD developments and community, often posted by readers. Includes forums to comment on news items.
GreasyDaemon.com: Your Guide to BSD Unix
Description, links and search engine to find information related to BSD Unix: FreeBSD, OpenBSD, NetBSD.
Slashdot: BSD
BSD section of the popular Slashdot open source news and forum site.
The BSD Family Tree
Explains differences between FreeBSD, NetBSD, and OpenBSD.
The BSDs: Sophisticated, Powerful, and (Mostly) Fr
Historical overview of the operating systems. [ExtremeTech]
ZDNet: Enterprise: BSD to leapfrog Linux?
BSD is gaining ground fast as publicity efforts and Apple's Mac OS X take off.