American Multicultural Publications
   Offers books on customs, traditions, history and accomplishments of ethnic groups.
   http://www.diversity-books.com/

Hippie Dictionary
   A reference book, history book, and social statement about the counterculture of the 1960s.
   http://hippiedictionary.com/

Morrison's Sound-It-Out Speller
   Dictionary that uses phonetics to locate correct spellings, and offers hints about meaning.
   http://www.phonicspeller.com/

Oxford English Dictionary
   Oxford University Press's dictionary described with ordering information.
   http://www.oed.com/

Quality Books
   Sells a variety of special interest titles, mainly focused on do-it-yourself kits for everything ranging from getting a divorce to starting a business.
   http://www.qualitybooks.com/