http://en.wikipedia.org/wiki/Great_Lakes_region_(North_America)

http://glr.cap.gov/

http://www.pagreatlakes.com/

http://www.greatlakesvolleyball.org/USAV/Redesign/index.cfm

http://www.cfagreatlakes.org/index.html

http://www.archives.gov/great-lakes/

http://akagreatlakesregion.org/index.html

http://www.greatlakesregion.us/

http://www.cfagreatlakes.org/shows/index.html

http://search.barnesandnoble.com/Butterflies-of-the-Great-Lakes-Region/Matthew-M-Douglas/e/9780472068845