Articlesnatch
The story of the fellow who lit the fire that exploded karate around the world. quite interesting.
http://www.articlesnatch.com/Article/Motobu-Choki--The-Toughest-Karate-Master-You-Didn-t-Know/1213171
Msisshinryu
Directory of mississippi isshin-ryu dojos with brief histories and facts regarding isshin-ryu karate
http://www.msisshinryu.com/masters/motobu
Karatebyjesse
Exploring the art, science, knowledge and culture of karate
http://www.karatebyjesse.com/?p=5249
Dragon Tsunami
Dragon Tsunami
http://www.dragon-tsunami.org/Dtimes/Pages/articlec.htm
Choki Motobu book
The hawaii karate seinenkai, a division of the hikari institute of honolulu, hawaii, a 501(c)(3) non-profit corporation.
http://www.seinenkai.com/
Fightingarts
Fightingarts
http://www.fightingarts.com/reading/article.php?id=398
Motobu Choki The myth
The first of a two articles exploring the truths and misconceptions about choki motobu who was arguably one of okinawa's greatest early twentieth century karate masters, and the most colorful.
http://www.fightingarts.com/content02/motobu1.shtml