- American Civil War Research Database
Offers a fully searchable database of people, places, and events of the United States Civil War.
- Early American Digital Library
Rare and hard-to-find images of early America's people, historic events and maps.
- HeritEDGE Historical Enterprises, Ltd.
Offers expertise in history consulting, research, public speaking, idea generation and exhibition curation for businesses and institutions.
- Historical Database
Products include a CD-ROM of letters of delegates to Congress, ships' histories, and Japanese shipping losses.
- Historical Document Reproduction, Inc.
Offers full-sized color prints of U.S. historical documents, with an emphasis on World War II.
- History Club On-Line
Trivia and games for individuals who enjoy writing and reading about history.
- History for Sale
Autographs and manuscripts from every conceivable field of endeavor, signed by history's greats from past to present.
- Mackus Company
Specializes in the acquisition and sale of historical legal documents and illuminated manuscripts, including Book of Hours, and music and biblical leaves.
- Militaryheritage.com - Home of the Discriminating General
Reproductions, research, and consulting services spanning the period 1743 to 1856.
- Out Of The Past Programs
Lectures on genealogy and history presented by professional genealogist, Richard L. Hooverson, a well-known author and speaker.
- Paperless Archives
Provides access to once secret and historical documents covering presidents, past events, celebrities, organized crime, politics, military, and more.
- Past Forward Heritage Services
Writers and publishers focused on preserving local, oral, and social history.
- U.S.S. Constitution Web Site
Selling books, CDs, videos, souvenirs, and prints.
U.S. Historic flags including: Grand Union, Bennington, Star Spangled Banner, Odd Star, Confederate and more.