Tripoley Rules
tripoleyrules.com
Rules, variations and pictures of Tripoley boxes from different years.
BoardGameGeek
boardgamegeek.com
Features a forum, user ratings, and summary of game rules, pictures, and lists.
Cadaco Toys
cadaco.com
Official site. Includes pictures, and descriptions of multiple Tripoley-based games.
Three In One
pagat.com
Tripoley rules and variations. Features pictures of the game, its components, and descriptions for each of the 3 stages of the game.