Pobox provides you with an email and WWW forwarding service. You'll get a
livelong, short email and WWW address (like: TheGurus@pobox.com and
http://pobox.com/~TheGurus).
Robert Collins is known for his knowledge of undocumented opcodes. Visit his site
and get information about these. Be sure to take a look at his huge book and
magazine articles list, too. He renamed his web pages due to some quarrels with
Intel.
Christian is known for his famous 4P Package. On his site he collected
all documented/undocumented stuff about x86 CPU's. He takes over from Robert
Collins.
Jim Neil is the inventor of TERSE, a new low-level programming language, which
can be freely mixed with assembler providing you with many new features. He plans to
build a TERSE version which allows you to mix C/C++ and Assembler freely.
Ralf is the maintainer of the interrupt list. This very huge list contains ALL known interrupts, both
from the PC system and the programs, even undocumented things are found in it.
Agner Fog collected a lot of Pentium information around the Net and wrote
the interesting details in a much more understandable form than any other
source we found...