Information and facts about the presidents of the United States are available online from the White House Historical Association, History.com and ipl2. The latter two sites contain biographical data on every president in history, while the former includes trivia and little-known facts.
The White House Historical Association provides facts about the presidents and their wives, as well as information about the White House and its history.
History.com is the website of the History Channel. The site devotes pages to each president and includes information about his policies and terms in office.
Ipl2 is the Internet Public Library, run by Drexel University's College of Computing & Informatics. The site is a resource for public service and learning.