Bartlett's Familiar Quotations
The 1901 version online: "A collection of passages, phrases and proverbs from ancient and modern literature" searchable by word or author.
Famous Quotations Network
Quotations database searchable by topic, author, or alphabetically. Includes selected authors biographies and links to other sites.
Online Dictionary of Quotations
Updated daily, can be searched by subject, author or word.
The Quotations Archive
A comprehensive, searchable database of general purpose quotations. Browse through quotations by subject, alphabetically by author or use the search engine to generate a listing of quotations containing selected keywords or by a certain author.
The Quotations Page
The original internet quotations page, this features quotes of the day, week, month, quote search, and links.
Quotegeek.com
Quotations from literature, plays, bumper stickers, movies, personalities, television, poetry, and by themes.