Pokemon Zone Hideout Headquarters

Cheat codes,Pokedex, forums, and walkthroughs.
http://www.angelfire.com/md3/magikarp110/index.html

Gym Leader Mayra's Pokemon Site

Includes hints and FAQs for Pokémon Yellow, Gold, and Silver.
http://www.angelfire.com/super/pkmnglm/Gym_Leader_Mayra.html

Pokemon Anthrax

Cheats, hints, tips, and information.
http://www.angelfire.com/pokemon/anthrax

Pokemon and Beyond

Offers hints, glitches, and GameShark codes.
http://pokemonsilver2.tripod.com/pokemonandbeyond

Pokemon Trainer

Offers in-game hints and GameShark codes for Pokémon Red, Blue, Yellow, Gold, and Silver.
http://www.geocities.com/pokecrafter/

Mew's Pokémon Codes

Codes for 6 Pokémon games, also includes a chat room, a link page, guestbook, an adoption center, and a Pokédex.
http://www.angelfire.com/yt/pokemaniac4/

Pokemon Walkthroughs

Provides text walkthroughs for the handheld console versions.
http://www.nyrgle.freewebspace.com/

Mew's Planet

Cheats, hints, and GameShark codes for Pokemon Red, Blue, Yellow, Gold, Silver, Pinball, and Trading Card Game.
http://www.geocities.com/mewsplanet/

Poké-Sages

Offers hints and GameShark codes for Pokémon Red, Blue, Gold, Silver, Snap, and Pinball.
http://www.geocities.com/pokesages20/

Super Mario Snap

Codes and cheats for Pokémon Red, Blue, Gold, and Silver.
http://members.tripod.com/reywas86/id15.htm

The Pokemon Place

Offers gameplay hints.
http://www.thepokemonplace.com/