This extremely compelling website, dedicated to examining the interactions between Brazil and the United States from the 18th century to the present, grew out of discussions between Dr. James H. Billington, the Librarian of Congress, and the former President of Brazil, Fernando Hernrique Cardoso. Developed under the auspices of the Global Gateway program at the Library of Congress, the site contains an impressive amount of primary source materials, including maps, rare books, prints, photographs, and manuscripts. When completed, the project will contain materials organized around four primary themes, but currently only the theme of Historical Foundations is complete. As might be expected, the site is presented in both Portuguese and English, and a powerful multifaceted search engine will help guide users to particular documents of interest. Browsing through the Historical Foundations section of the site, visitors will find a timeline (complete with accompanying visual materials), and five separate sections dedicated to exploration, the colonial period, and so on.