1. Inaugurals of Presidents of the United States (via Architect of the U.S. Capitol)
Dates, locations, and notable facts.
2. Presidential Inaugurations (via White House Historical Association)
Backgrounders, timeline, and more.
3. Vice Presidential Inaugurations (via Architect of the U.S. Capitol)
4. The Oath of Office (via Library of Congress)
5. Bibles and Scripture Passages Used by Presidents in Taking the Oath of Office (via Library of Congress)
6. Full Text and Page Images of George Washington’s First Inaugural Address (via NARA)
7. Presidential Speech Archive (via Miller Center, U. of Virginia)
Collection of inaugural addresses and other presidential speeches.
8. Video: Presidential Inaugurations Ceremonies and Inauguration Addresses (via C-SPAN)
On a related note…A recently update Congressional Research Service report on presidential inauguration security.
Full Text: Inauguration Security: Operations, Appropriations, and Issues for Congress (via FPC)
Updated December 17, 2012 (15 pages; PDF).