Allscifi Anne McCaffrey Spotlight: A detailed reviews of several McCaffrey books.
Chronicles-network: Anne McCaffrey: Bibliography and reviews of her novels.
Stefan's Altar to Anne McCaffrey: A fan site listing personal experiences with the author, DragonCon information, and book reviews.
The Many Works of Anne McCaffrey: Fan site containing a bibliography, biography and links to available book excerpts.
The Pern Museum & Archives: Home of the Pern Encyclopedia site, also with information about McCaffrey's other works.
The Worlds of Anne McCaffrey: Author's official homepage features news, photos, biography, bibliography and fandom links.