Plan 9 Operating System

• Inferno@

• C@

• Computers: Software: Operating Systems: Open Source 
• Computers: Software: Operating Systems: Realtime 

• 9term Terminal Emulator  - Unix implementation of terminal windows, with demonstration images.
• Bell Labs Unveils Open Source Release of Plan 9 OS  - Announces the third press release of Plan 9 operating system.
• Linux Today: Problems of Plan Nine License  - Enumerates problems about license of Plan 9 with discussions, includes related stories.
• Plan 9 from Bell Labs  - Built from CPU and file servers as well as terminals. Contains references and related links.
• Plan 9 from Bell Labs - Fourth Edition  - OS kernel and a collection of software, developed at Bell Labs. Includes brief overview and releases.
• Plan 9: The Way the Future Was  - Discusses Plan 9 and UNIX comparison with examples.
• v9fs - Networked Filesystem  - Provides Linux 2.6 kernel Plan 9 9P2000 resource sharing protocol client, licensed under GNU GPL.