Encarta: Watt, James: Encyclopedia article provides an overview of the inventor's life and work.
Inventor James Watt: Fascinating facts about the man who improved the steam engine.
James Watt: Online version of classic biography first published in 1925.
James Watt: Short biography along with sketches of the Watt engine and steam governor. In English and Italian.
James Watt (1736-1819): Short biography of the man who perfected the steam engine.
James Watt by Andrew Carnegie: Carnegie's book-length biography, first published in 1905.
Spartacus: James Watt: Short encyclopedia article written for students.