The Shepherds Journal Online - www.shepherdsjournal.com/
Click "Breed Profile" then click "Katahdins".

Alberta Katahdin Sheep Assn.  - http://www.Katahdinsheep.com

Breeds of Livestock - Katahdin Sheep - http://www.ansi.okstate.edu/breeds/sheep/katahdin

Katahdin Hair Sheep International - http://www.khsi.org/