Political Thought in the 16th Century
- An overview of the Florentine thinkers. From the European Educational Project.
- http://www.liceomarconi.it/pee-99-00/political.html

Virtù in and since the Renaissance
- Jerrold E. Seigel writes about the concept and how it is used by Machiavelli and later thinkers. From the Dictionary of the History of Ideas.
- http://etext.lib.virginia.edu/cgi-local/DHI/dhicontrib2.cgi?id=dv4-64