I've been working on a Wiki for NES hacking for some time now, and I've got it to the level where I want to show it off. I'm trying to make it useful for both noobs and experts alike.
It currently focuses on using emulators to add and find new cheats by discovering which memory addresses are used, but it's slowly adding some reversed engineered machine code for more experienced hackers.
I've written some guides to explain how to contribute. You don't need to understand how the NES works, you just need to understand how to use an emulator to help.
Please join in the fun by discovering new cheats for your favorite games!
http://www.thealmightyguru.com/Games/Hacking/Wiki/index.php