NESDEV.ORG
The authority on NES technical information.
NES Cart Database
The largest NES/Famicom game boardset repository.
Ultra NES Emulator FCEUX
One of a few of the finest NES emulator engines around.
RetroUSB
Makers of the NES Powerpak, and the NES AVS.
InfiniteNESLives
The source for NES homebrew dev tools.
Long Island Retro Gaming
Preserving and honoring classic video gaming.
Kevtris’ Blue Tech
Author of Copy NES and tech community guru.
Nerdy Pleasures
A really cool website with lots of related content.
Zophar’s Domain
Classic source for retro emulation.
NES World
One of the oldest sources for general info about the NES and Famicom.
Famicom World
Another great site dedicated to Famicom info.