History and rules of the game and variants, like Tawlbyund and Alea Evangelii. Also the history and rules of related games like Ludus Latrunculorum and Seega.
Hnefatafl - An Experimental Reconstruction
Includes rules and figures depicting several variants. Written as a paper for an archaeology course.
Hnefatafl - the Strategic Board Game of the Vikings
An overview of rules and variations of the game by Sten Helmfrid.
Contains rules and game information. (Dutch, English)
The Online Guide to Traditional Games
Contains history and information on the game family.
Taefl: The Saxons & Vikings
Offers rules and history with free downloadable computer version.