Biography.com: Puffendorf, Samuel Freiherr von: Brief biographical summary on this early modern German scholar.
Columbia Encyclopedia: Pufendorf, Samuel, Baron von: Concise article from the 2001 edition.
FOLDOC: Pufendorf Samuel: Entry on the German jurist, from this philosophical database.
History of Economic Thought: Samuel von Pufendorf: Concise profile and links.
Of the Law of Nature and Nations: Full text of this work by Pufendorf.
On the Duty of Man and Citizen: This 1682 classic by Pufendorf, as translated into English by Frank Gardner Moore.
Puffendorf: Section dealing with this thinker, from Hegel's Lectures on the History of Philosophy.
Wikipedia: Samuel Pufendorf: Article incorporating information from the 1911 Britannica.