Nancy Drew Books - Lists the books in the various series, and their year of publication. - http://nancydrew.bobfinnan.com
Hardy Boys and Nancy Drew Archive, The - An updated resource of the many incarnations of Hardy Boys and Nancy Drew mysteries from 1927 to the present, with an emphasis on literary criticism and interpretation. - http://roomofbensown.net/hbnd/
Nancy Drew Books and Games - (Mystery Net) Introduction to the author and Carolyn Keene. Information on books and games, discussion forums. - http://nancy-drew.mysterynet.com/
The Ghost of Nancy Drew - Biography of Mildred A. Wirt Benson, discussing her contributions to the character and the series. Includes a bibliography. - http://www.lib.uiowa.edu/spec-coll/Bai/lapin.htm
Who Wrote Nancy Drew? - Discusses the individuals who outlined, wrote, edited, and revised each book in the series under the collective pen name of Carolyn Keene. [PDF Format] - http://www.keeline.com/Nancy_Drew.pdf
Mildred A. Wirt Benson - Fan site for Millie Benson known to many as "Carolyn Keene" for her popular Nancy Drew books. Features biography, works, archives, and the history behind her pen name. - http://www.nancydrewsleuth.com/mildredwirtbenson
Around the World with Nancy Drew - Information on the various international versions of the books and the many places that Nancy has traveled in her adventures. - http://www.nancydrewworld.com/
Nancy Drew Sleuth - Designed for fans and collectors. Provides information on this plucky sleuth including history, books, formats and pictures. - http://www.nancydrewsleuth.com
Beyond Nancy Drew - An annotated bibliography of books for girls written in the last two hundred years which reflect the roles for girls considered proper at the time. - http://scriptorium.lib.duke.edu/women/beyond-nancy-drew.html