The following is a collection of links to web sites offering rules to familiar and obscure board games, along with strategy guides and tutorials.
Abstract Strategy Game Rules
Rules for games such as 3 Stones, Chinese Checkers, Halma, Pente, Reversi, and many more abstract strategy games.
Alphabetical List of Board Game Rules
A comprehensive alphabetical listing of rules to various board games, both familiar and obscure.
Board Game Capital
Board Game Capital offers fun board game facts, images, ideas and more. Covers both traditional and non-traditional board games.
Though the comprehensive BoardGameGeek site doesn't have a separate "rules" section, most of their detailed game listings include rules (or links to rules).
Game Cabinet English Rules Translations
Rules, in English, to hundreds of board games from Germany, France, Belgium, and elsewhere.
Game Cabinet Rules
Rules to many popular commercial card and board games, reprinted from the original rulebooks that came with the games, with the original illustrations and artwork.
Masters Traditional Game Rules
Rules to a variety of board games, table games, dice games, tile games, card games, and more.
Rules to Period Games
Rules to historical card and board games, courtesy of the Medieval & Renaissance Games web site, which is dedicated to sharing information about Really Old Games.
The Board Gamesbook Rules
Board game rules by period and theme, inlcuding classic and modern abstract games, ancient/medieval/fantasy games, science fiction games, and more.
Board Game Rule Links, By Publisher
Rules to most games published by Gamewright (mostly in PDF format).
Hasbro Game Rules
This is a database of rules to Hasbro games. Stop squabbling over house rules. Browse Hasbro's collection of official rule books and finally settle the score.
Rules for games published by Pressman Toys Corporation.
University Games Rules
Rules for games published by University Games and BePuzzled.