http://www.pbs.org/wbgriffin
Related to a PBS special on the architect

http://www.prairiestyles.com/griffin.htm
Introductory material

http://rubens.anu.edu.au/htdocs/surveys/charlotte/byartist/index17.html
Images of Griffin buildings, primarily in Australia

http://www.ci.chi.il.us/Landmarks/Architects/Griffin.html
Focuses on buildings in Chicago

http://www.griffinsociety.org
Website of the Walter Burley Griffin Soceity in Australia

http://www.wbgriffinsociety.org
Website of the Walter Burley Griffin Society in the United States.

http://www.grinnelliowa.gov/SullivanBank/index.html
Website of Grinnell's Jewel Box Bank by architect Louis H. Sullivan.