Here are some recommended websites with good information about the League of Nations.
- The Wikipedia entry is very well done.
- Covenant of the League of Nations (pretty long); it is also on Firstworldwar.com.
- The League of Nations Timeline
- Wilson's Final Address in Support of the League of Nations was his speech made in Pueblo, Colorado on 25 September 1919
- Senator Henry Cabot Lodge Speaks out against the League of Nations, a 12 August 1919 speech in Washington, DC by one of the main opponents of the League
- The United Nations Office at Geneva has a website on the History of the League of Nations (1919-1946)
- Map of the League of Nations, 1920-1946, identifies the countries involved with the League.
- Northwestern University Library, has an online collection of League of Nations Statistical and Disarmament Documents
- The BBC's history section has a good overview of the The League of Nations and the United Nations
- The Idea of a League of Nations, by H.G. Wells, an article from the Atlantic Monthly, January 1919