About American History
A great resource from Martin Kelly, your Guide to American History at About.com

About 20th Century History
Jennifer Rosenberg covers the 20th century.  Not just American History.

The American Experience
Find in-depth coverage of The American Experience series at PBS.

American Memory Collection - Library of Congress
Search the collection from this page to find the extensive resources in American History.

American Presidents Life Portraits
The companion Web site to C-SPAN's special series.

Discoverers Web
Very extensive information on a fascinating topic.

Eyewitness to History
Fascinating first-person accounts of historical events.

Grolier Online's The American Presidency
Very nicely done.  Fits in with the fifth-grade Social Studies curriculum on American History.

National Register of Historic Places
Learn American history with online visits to American cities.

PBS Online - Lewis and Clark
A companion site to the PBS special on the Lewis & Clark Expedition. Fascinating.

Women In American History
Feature from Encyclopedia Brittanica Online. These are always very well done.

The World of Benjamin Franklin
Learn more about his life and accomplishments.  Includes Internet activities for enrichment learning.  From the Franklin Institute Science Museum.