UNO

The Art of Uno
Rules for advanced Uno players.
http://www.stjost.si/uno/Uno.htm

Brikker and Brett
Content list and review by Trond Braut.
http://www.brikkerogbrett.com/games/uno.shtml

Central Connector Game Cabinet
Uno Hearts variant.
http://www.centralconnector.com/GAMES/unohearts.html

Central Connector Game Cabinet
Rules for the game and a downloadable Windows version.
http://www.centralconnector.com/GAMES/unorules.html

Central Connector Game Cabinet
Speed Uno variant.
http://www.centralconnector.com/GAMES/speeduno.html

GameFAQs
Review by CmdClaus.
http://www.gamefaqs.com/portable/gbcolor/review/R5316.html

Hot Death UNO
Variant game with rules plus downloadable and printable cards, and a PC version.
http://www.geocities.com/hotdeathuno/html/wingame.html

House of Cards
Descriptions, rules, and purchase links for basic and variant Uno games.
http://thehouseofcards.com/retail/uno.html

The original UNO
Official rules, the deck, the Cutthroat variant and spinoff products of the game.
http://members.aol.com/babso00001/uno.html?mtbrand=AOL_US