General -
Timeline of Video Arcade Game History - A basic timeline of key arcade releases that that helped to drive, mold, and change the industry.
History of Computer and Video Games - A very in depth and informative piece on the general history of computer and console gaming.
List of Video Game Consoles - A fantastic piece, giving in depth info on every major and minor console release in gaming history.
The Video Game Museum - An incredibly comprehensive and generation spanning website that provides info, pictures, music, and a lot more on all of the Old School game systems and games, as well as much of the more modern stuff as well. Great site, I suggest any fan of gaming check it out.
Classic Gaming - Another great site that holds a lot of info and other cool stuff about all the classic systems, mainly dealing with 8-bit and before.
GameFAQS - A very comprehensive site, giving info on all sorts of games, ranging from arcade to PC to home console. A wealth of information, and the top spot to go for codes, game cheats, and walkthroughs.
Lists of Video Games - This is a list of video game lists, each one very comprehensive in itself, so you can pretty much find anything you’re looking for here.
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Arcade -
Arcade History - A pretty enormous database of information on arcade games, spanning the earliest games to the latest. Presented in a search engine format, but there’s a lot of info to be found here.
The Arcade Museum - Another great site with a wealth of info on arcade games. You can find just about anything here.
International Pinball Database - For the pinball fanatics out there, this is a great site, similar to the two listed above, but dealing entirely with pinball machines.
List of Arcade Games - A decent and well organized list of arcade games and info about most of them.
1980 Games - A site where you can play free classic games, online.
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Computer Games -
Classic Amiga - A great site for fans of old Amiga computer games.
Generation-MSX - A great site for fans of old MSX computer games.
DOS Games - A nice database that has a lot of old DOS games for download, to let you check out the classics. Remember, you can’t keep these games unless they’re verified FREEWARE, or if you own a copy of the game, for more than 24 hours.
C64.COM - A great site for Commodore 64 fans, has tons of info, pics, music, and even game demos.
Virtual Apple - This is a great flash site that lets you play a ton of old Apple II games online!
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Atari -
Atari.Org - The ultimate Atari fansite, by the fans, for the the fans, with tons of info on Atari’s great legacy.
Atari 2600 - Another great fansite, covering everything Atari, but mainly dealing with the most famous of their classic systems, the 2600.
The Atari Museum - A very well made Atari website, that makes a very nice presentation of the history of Atari and it’s many successes, and failures.
Atari Age - Yet another great Atari fansite.
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Nintendo -
Nintendo.com - The Official Nintendo Homepage.
NintendoLand - A great Nintendo fansite, with an in depth database for the NES, as well as many awesome sub-sites dedicated to some of their greatest franchises.
Nintendopedia - A very extensive Nintendo based Wiki page, covering probably most of what you’d want to know about the company and it’s games.
Super Mario Wiki - A wiki page dedicated entirely to the Super Mario Bros. Universe.
The Legend of Zelda Wiki - A wiki page dedicated entirely to the Legend of Zelda Universe.
Wikitroid - A wiki page dedicated entirely to the Metroid Universe.
The Super Mario Bros. HQ - A great Mario fansite, covering his entire history from 1981 to the present.
Kirby’s Rainbow Resort - A great Kirby fansite, covering his entire history, from the 8-bit era through to today.
NESGuide.com - A bad ass website, with profiles, including boxart, game description, and gameplay videos, of over 700 NES classics. There's also a link on the site to it's sister site, SNESGuide.com, which is the same format, and just as thorough, but for 16-bit classics. For any fan of classic NES/SNES gaming, I highly recommend you check this out.
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Sega -
Sega.com - The official Sega of America website.
Sega Source - The Unofficial Guide to Everything Sega! A great site with a rich format.
Sega Wiki - A wiki page dedicated entirely to everything Sega.
Sonic News Network - A wiki page dedicated entirely to the Sonic the Hedgehog Universe.
Sonic Stadium - A great fansite covering everything Sonic.
Sega Nerds - A great fansite that covers all things Sega, old and new.
Sega-16 - A Sega fansite that focuses primarily on the "16-bit era" of Sega’s greatness, covering the Genesis, Sega CD, and Sega 32-X.
Sega Dreams - A very well made and growing Sega fansite.
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Turbo Graphx 16 -
PC Engine FX - A great fansite for the PC Engine/ Turbo Graphx 16, as well as NEC/Hudson’s gaming legacy.
Turbo 2k - Another great Turbo Graphx 16 fansite.
Super PC Engine Graphx - A very large database of Turbo Graphx stuff, from pics to music to downloads.
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Neo Geo -
SNK Playmore - The Official site of SNK Playmore, the current owner of most Neo Geo properties.
Neo Geo.Com - The top Neo Geo database on the web, there is a wealth of info to be found here on everything for SNK’s home arcade machine.
Neo Geo For Life - A great Neo Geo fansite, covering the life of the system.
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Third Parties -
Capcom:
Capcom - Capcom’s Official site.
Mega Man Knowledge Base - A wiki page entirely dedicated to the Mega Man Universe.
The Mega Man Home Page - The Unofficial home of everything Mega Man.
Street Fighter Galleries - A nice website with artwork and sprites from the entire Street Fighter series.
Konami:
Konami - The Official Konami website.
The Castlevania Dungeon - A great site covering the entire Castlevania series.
The Contra Headquarters - Great fansite covering the entire Contra series.
Square-Enix:
Square-Enix - The Official website of Square-Enix, containing info on their games, as well as their respective histories.
Final Fantasy Insider - A site dedicated to the long and storied Final Fantasy Franchise.
The Dragon Quest Shrine - A site dedicated to the long and storied Dragon Quest (Warrior) Franchise.
Tecmo:
Tecmo Games - The Official website of Tecmo.
The Ninja Gaiden Homepage - A good site dedicated to the history of the Ninja Gaiden series.
Namco:
Namco Bandai Games - The Official website of Namco Bandai.
The Pac-Page - A site dedicated to the history of the world famous Pac-Man series.
Hudson Soft:
Hudson Entertainment - The Official Hudson Soft website.
The Bonk Compendium - Great Bonk fansite.
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Game News -
IGN.com - A great site with news on video games, music, movies sports, etc...
Kombo.com - Another great site, a bit more focused on video games in general.
1-UP.com - The website for Electronic Gaming Monthly, it has a lot of info and news, as well as good, albeit bias game reviews.
Game Trailers - A great database of videos for current and upcoming games.
Joystiq - A good site with news and info pieces on contemporary gaming.
Kotaku - Another good site for gaming news and info, with it’s own unique brand of humor.
Go Nintendo.com - A website entirely dedicated to up to date daily news on everything Nintendo.
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Game Music -
OverClocked Remix - An awesome site featuring a huge database of video game remixes done by game fans from all over the world. If you like game music, then check it out.
Galbadia Hotel - An excellent resource for game soundtracks. If you’re looking for it, chances are they’ve got it.
The Video Game Music Archive - A huge game music archive, with lots of minis as well as mp3s, direct from the games.
Video Game Music Culture - A great piece on the American "Game Music Culture", as well as a huge list of links to websites for the many great game music cover bands out there, such as The Minibosses and Metroid Metal.
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MISC. -
ScrewAttack.com - An awesome site mostly dedicated to the retro 8-bit era of gaming.
The Angry Video Game Nerd - Originally known as the Angry Nintendo Nerd, The Nerd has now branched out to all forms of retro gaming, and has become an internet phenomenon.
Unseen 64 - A large database of info on games that for one reason or another, were canceled or never released.
I Am 8-bit - The main website for I Am 8-bit, the leader in classic gaming inspired artwork galleries.
SHMUPS - A website entirely dedicated to shoot ’em up games, such as Galaga, R-type, 1942, etc. And it is one of the oldest gaming sites on the net!
Game Stats - A large database of info on just about every game that has been released, for any system.
RetroWareTV - Another cool site, dedicated to retro gaming. Their main show is pretty informative.
Twin Galaxies - Founded in 1981, this is the only officially recognized international record keeper of pinball, arcade, pc, and home console high scores and records.
YouTube - Everyone knows YouTube, but what a lot of people don’t know, is that it’s a great site to look up all kinds of material dealing with old school video games. An insane amount of stuff to be found here, from game endings, to speed runs, cartoons, parodies, homages, even old game commercials. If you’re a fan of Retro gaming stuff, I suggest you go searching YouTube.
The Console Wars - A very in depth piece on the "Console Wars", ranging all the way back to the 70s, on through to today’s current generation.
Best Selling Game Consoles - A fairly comprehensive list of every top selling video game console that has been on the market.
Best Selling Video Games - A comprehensive list of all the top selling console games for every major system. The ones listed are games that have sold 1 million copies and counting.
Retro Junk - This is an AWESOME site that covers a lot of the shit we used to love as kids, I.E. toys, commercials, video games, cartoons, shows, movies, etc. CHECK EM OUT, you won't be disappointed.