Operating Systems links...

UhUh... so you're a serious guy and want to work...

(NOTE: If you are looking for information about any Operating Systems course you should go here instead... (spanish) )

Pointers...

I am working on a distributed system named Plan B.
Previously I worked on a distributed adaptable microkernel named Off++ which was part of an entire OS named 2k
A good OSes index with current OS projects and OS research links. (Bridges)
Yet another OSes index (sven), and another (hglee).
Many RT OS links
Distributed Algorithms and Systems Home page.
Adaptative operating systems pointers...
PhD lecture about real time systems (in spanish) Sistemas de tiempo real.

Some interesting OSes...

Some paradigmatic OSes

Multics.
The old and good UNIX.
The exokernel. There is a version for PCs, Xok. Another OS named eek could interoperate with Inferno and will be turning into an exo/libOS system. Besides, there's a branch of the exo going at western pennsylvania.
The Apertos Object Oriented Reflective system.
The Choices Object Oriented OS.
The Amoeba distributed OS.
Spring
Apollo domain.

These are my favorite ones

ANTS. Active node for active networks.
L3 and L4 A non-portable optimized microkernel with some interesting ideas. See also Fiasco.
EROS: The Extremely Reliable Operating System .
Paramecium An extensible object-based OS.
The Plan 9 home page. Includes:
Take a look also to forsyth's Plan 9 links to get software and docs for plan 9. A page with local resources for Plan 9 is available too.

Inferno draws heavily on Plan9. Some of them are Mach based.

Mach project.
The Mach project FAQ at CMU.
A Hird (Hurd of Interfaces Representing Depth) of Unix-Replacing Daemons: Hurd. The GNU Mach based OS. See also Trent's Hurd page.
Fast and Flexible Mach-based Systems There is also an operating system toolkit named oskit. Its manual is available online.
Mach4 at Utah.
Real Time Mach at ART, CMU project.

Some Real Time OSes

Maruti: A hard realtime distributed OS. You can get sources from the University of Maryland.

And a few ;-) more

The Nemesis Operating System from the Pegasus II Esprit project.
Odyssey. A system for Mobile computing.
Oberon.
The Plan 9 home page. Includes a searchabe manual and papers.
Andy Valencia VSTa. Inspired from plan9, it's a small microkernel made of free software (under GPL).
Khazana. An Infrastructure for Building Distributed Services.
Some systems, like WebOS, Legion, Globe, and Globus, designed for the whole internet. See also some "Internet + file systems" works. WebNFS, WebFS. A nice set of links can be found on WebOS's related links page.
Ninja tries to build internet-wide systems built from small devices.
The Mobile People Architecture tries to build an environment for person-to-person comunication.
SPIN (extensible microkernel)
MARS. A distributed, real-time OS.
This is jet another OS to aid teaching Nachos. Topsy is a teachable operating system.
Scout, a communication-oriented operating system targeted at network appliances. A distribution is available.
MOSIX. It is a cluster for unix.
HOPE An optimistic OS.
PVM: Parallel Virtual Machine. A parallel heterogeneous OS.
PIOUS for PVM from Emory University
Arjuna Project Information.
RTEMS Home Page
My favourite Linux resources, including some research projects.
NetBSD.
KeyKOS. A distributed (nanokernel based) OS.
OpenBSD, a NetBSD-like OS.
The SimOS page A simulator for the MIPS hw. It runs Irix 5.x and Linux-MIPS is on the way!.
The Grasshopper persistent OS.
bpmk. Another microkernel.
The adaptative communication environment, ACE. Useful to build distributed applications. There is a version for Java, JACE.
Impulse. It is an Adaptable Memory System. The goal of the Impulse project is to build an adaptable main memory controller.
Programming on PalmOS.
Pittsburgh Pebbles PDA Project.
a386 is a virtual machine for a 386 which runs as a UNIX process. You can use it to develop and debug kernel code on top of Linux.

Groups...

There are pointers to some research groups (above) and to ACM groups related to distributed OSes (below).

MIT Parallel and Distributed Operating Systems Group
The Stanford SUIF Compiler Group. Pointers to SAM Distributed shared memory system and more fun!.
Sun Microsystems, Research Labs home page. See also their TRs (They were found here before).
HP labs CSL.
A link to a local group Grupo de Sistemas Operativos Distribuidos (spanish).
Distributed Systems Research Group at TH Darmstadt.
Digital R&D
Stanford University Distributed Systems Group.
ANSA: Distributed OO stuff.
System Software Research Group at UIUC.
SOR at INRIA.
Distributed systems research from AT&T Labs at Cambridge.

ACM SIG Operating Systems. See also the acm@uiuc sigops.
ACM SIG Computer Science Education.
ACM SIG Systems Documentation
ACM SIG Mobility of Systems, Users, Data and Computing.
ACM SIG Programming Languages

Bibliographies and info...

Bibliography on distributed file systems
On-line CS Techreports.
Search CS TRs.
Intel home page . (including developer stuff).
See also my literature page.