Based on the 1919, 10th edition, of Bartlett's, this site offers a keyword search interface, plus a Chronologic Index of Primary Authors, an Alphabetic Index of All Authors, and a Concordance Index to Quotations.
A searchable and continuously updated version of the definitive English language dictionary on word origins and usage. Allows searching of the entire text of the dictionary including words used in the definitions, etymologies, and illustrative quotations; authors of quotations; and full phrases.
Includes the meanings and origins of thousands of English sayings, phrases, idioms and expressions. Broken down into proverbs, American phrases, phrases coined by Shakespeare, nautical phrases, and phrases from the Bible, the site can be browsed or searched.
Search interface for the official series of Presidential writings, addresses, and remarks of a public nature. Messages and papers of the Presidents from 1789 to the most currently available are also accessible via the American Presidency Project; papers from 1929 forward are available from the University of Michigan Digital Library.
Attempts to collect and provide a single search interface for the largest Web-based sources of quotations and related items (proverbs, sayings, maxims, amorphisms, slogans, clichés, etc.). Many of the websites included also include the full text of speeches, author biographies, and quotes of the day.