This very helpful site from the University of Minnesota lets you create a timeline of activities that are necessary to write a research paper and provides definitions, tutorials, research guides, and other helpful aides.
Access thousands of primary sources — letters, photographs, speeches, posters, maps, videos, and other document types — spanning the course of American history. Register to create an account. Developed by the National Archives.
NYARC consists of the research libraries of three leading art museums in New York City: The Brooklyn Museum, The Frick Collection, and The Museum of Modern Art. This new website highlights the collaborative activities of the consortium and promotes each library's collection through posts in the News & Collection Highlights blog.
Showing the interaction of European and indigenous culture, Vistas "offers a critical selection of color images, primary sources, and interpretive essays on colonial history and culture." Documents in Spanish, English, Nahuatl, Quiché Maya, and other languages are also part of the site.