reverse engineering:
CrackZ: excellent page from a very capable reverser
Fravia's mirror of reverse code engineering (excellent too)
+Sandman's page of Reverse code engineering
Neural noise's work (excellent reading from a good friend of mine)
The Immortal Descendants (good site with tuts , crackmes ..)
Lucifer48's Homepage (nice tutorials, crackmes..)
r!SC (Good friend! and very good reverser: unpacking god :P)
BlackB (nice site , good for 4 newbies)
Christal (french, good page)
The Egoiste (good friend , cool site, keygens sources ...)
seifer666's page of cracking (new site about cracking from a friend :)
Hellforge's Homepage (Great site)
Assembly tutorials:
Art of Assembly (must read)
PC Assembly Language Book - 32 bits protected mode
Assembly Programming Journal
Tools:
Programmers Tools (best tool site ever)
Fun:
The Lamer Logs Gallery (go there !! too funny )
Computer stupidities (fun ;)
Links:
Nitallica 's good links site ! visit it now - Phrozen Crew 2000
CrashTest (lot of links there)
GFX:
DnNuke's GFX page ! (very nice gfx page of an old friend of mine)