Biography.com: Condorcet
Brief entry on this French thinker.
Condorcet
Brief profile with portrait and extensive links, from the New School's History of Economic Thought.
Condorcet: The Education of Progress
Extensively interlinked pages on various aspects of Condorcet's thought. Includes online texts in French and English.
Condorcet: The Future Progress of the Human Mind
An excerpt from the work which Condorcet wrote shortly before his death.
Marie Jean Antoine Nicolas de Caritat Condorcet
Article from the MacTutor History of Mathematics project, by J.J. O'Connor and E.F. Robertson. Portrait and a concise review of his intellectual career.
Wikipedia: Marquis de Condorcet
Lengthy article from this openly-edited encyclopedia.