ProCon.org
Pro Con: u.s. Iraq War: Should the Us Have Attacked Iraq?
Website provides multi-media resources for both sides of the issue on whether the U.S. should have attacked Iraq or not. Includes background information, primary source documents and video gallery.
PBS
Pbs: American Experience: Panama Canal
Regarded as one of the seven wonders of the modern world, the Panama Canal opened for business on August 15, 1914. America's ingenuity and innovation had triumphed over insurmountable odds. PBS brings us this incredible story via online...
Other
The Oil Industry: Spindletop
Links to several excellent sites on the Discovery of Oil at Spindletop. See many photos, primary documents, biographies, and a multimedia timeline.