This leading Ellington website is A Chronicle of Duke Ellington’s Working Life and Travels run by the Canadian David Palmquist. It is an indispensable source of information for anyone researching Ellington, writing articles about him or just wanting to know more details about him.
The url is tdwaw.ca.
The website is constantly filled with new information and last year it had to be split up in two parts, one covering the period 1891-1945 and the other 1946 to the end of Ellington’s life. One choose the period on the front page and also if one likes access the website through a server in Canada or a mirrored server in the U.K.