Friesian | Say's Law: Explanation by Kelley L. Ross's Friesian school.
Jean-Baptiste Say: Several resources, bibliography, and summary of thought.
Jean-Baptiste Say: Mises.org synopsis of the neglected enlightenment economist.
Jefferson's Letters | To Jean-Baptiste Say: A letter from Thomas Jefferson discussing recent economic works.
Liberal Thinkers: Jean Baptiste Say: A short biography from the site of Liberal International.
The Accidental Inventor of Today's Capitalism: New York Times by Louis Uchitelle.
Works by Say: His "Letters to Malthus" and "A Treatise on Political Economy."