University of Houston
University of Houston: Engines of Our Ingenuity: John Dalton's Notation
This is part of a small radio show at the University of Houston. It talks about how John Dalton came up with his version of chemical notation, and how it differs from our version of it today. It is available in audio form also.
Other
Le Moyne University: John Dalton
This site from the Le Moyne University provides excerpts from Dalton's "A New System of Chemical Philosophy" published in 1808. Includes Dalton's table of atomic weights and and scanned atomic symbols.
Soylent Communications
John Dalton
A very thorough biography of John Dalton on this site made by Notable Names Database. Also gives the names of books that were written about him or his ideas.
Other
Dalton's Atomic Theory
This site contains Dalton's atomic theory and a brief biography about the scientist.