 2K (3) |
| A-UX (14) |
 AgentOS (56) - Plan 9; 2K; Amoeba |
| AIX (24) - IBM Resources; FAQs; Vendors |
| Amoeba (2) |
| BSD-OS (1) |
| ChorusOS (5) |
 Cisco IOS (5) |
| Croquet (28) - News and Media |
| CTRON (10) - Nucleus; RTEMS; eCos |
| Digital Unix (3) |
| DragonFly BSD (9) |
| Erlang (225) - Conferences; News and Media; Contributions |
| FreeBSD (73) - Documentation; Development; Companies |
| GNU Hurd (18) - GNU Compiler Collection; Stallman, Richard |
| HP-UX (9) - Porting and Archives; FAQ; Mailing Lists |
| Inferno (10) - Limbo; Ritchie, Dennis |
| IRIX (3) - Companies; Documentation; Programming |
| MINIX (13) |
| NetBSD (49) - Documentation; Development; Vendors |
 NetWare (45) - Groupwise; Consultants; Novell Technical Education |
| OpenBSD (97) - System Administration; Security; Development |
| OSF1 (3) |
| Plan 9 (28) - Inferno; Software |
| QNX (17) |
| REBOL-IOS (120) - FAQs, Help, and Tutorials; Scripts; News and Media |
| SCO (201) - Boycott, Lawsuits; UnixWare |
| Solaris (70) - Administration; Documentation; OpenSolaris |
| Squeak (112) - Croquet; Software; Scratch |
| TinyOS (14) |
| Tru64 (3) |
| UnixWare (0) - SCO-IBM Lawsuit |
| Windows 2000 (68) - Security; FAQs, Help, and Tutorials; Active Directory |
| Windows NT (92) - Training and Certification; Utility Software; Security |
| Windows Vista (32) - Chats and Forums |
| Windows XP (122) - FAQs, Help, and Tutorials; Themes, Graphics, and Icons; Tweaking |
| Xinu (6) |
| Network: More Sites (3) |
List of web sites about Operating Systems: Network. Links and information. Distributed; NetWare; TinyOS
