LGBTQ Religious Archives Network (LGBTQ-RAN) is an innovative venture in preserving history and encouraging scholarly study of lesbian, gay, bisexual, transgender and queer (LGBTQ) religious movements around the world. 
The United States Holocaust Memorial Museum’s Holocaust Encyclopedia is the most visited and comprehensive Holocaust resource online today. It provides the public, educators, faculty, students, and scholars with hundreds of articles, access to digitized collections, critical thinking and discussion questions, lesson plans, oral histories, videos, and much more.
Founded in 1985, the Gay, Lesbian, Bisexual, Transgender (GLBT) Historical Society is recognized internationally as a leader in the field of LGBTQ public history. The GLBT Historical Society collects, preserves, exhibits and makes accessible to the public materials and knowledge to support and promote understanding of LGBTQ history, culture and arts in all their diversity.
Disciples of Christ Historical Society has preserved the many documents, books, periodicals, audio and visual materials, and precious artifacts that tell the story of the Stone-Campbell heritage. Disciples History provides a history of the Stone-Campbell Tradition, biographies of notable people, and a list of Disciples of Christ periodicals.
The purpose of the Digital Transgender Archive (DTA) is to increase the accessibility of transgender history by providing an online hub for digitized historical materials, born-digital materials, and information on archival holdings throughout the world. 
The Digital Public Library of America Primary Source Collections explore topics in history, literature, and culture developed by educators — complete with teaching guides for class use. 
The Digital Public Library of American Exhibitions showcases stories of national significance drawn from source materials in libraries, archives, and museums across the United States. 
The David Rumsey Historical Map Collection contains more than 150,000 maps dating from 1500 to the present. The collection focuses on rare 16th through 21st century maps of North and South America, as well as maps of the World, Asia, Africa, Europe, and Oceania. The David Rumsey Historical Map Collection includes atlases, wall maps, globes, school geographies, pocket maps, books of exploration, maritime charts, and a variety of cartographic materials including pocket, wall, children’s, and manuscript maps.
These original photographs document the involvement of Queens College students and other Northerners in the Civil Rights Movement of the early to mid-1960s, including Mississippi Freedom Summer, the Virginia Student Help Project, the Summer Community Organization and Political Education (SCOPE) Project, and the Medical Committee for Human Rights (MCHR).
BlackPast.org, an online reference center makes available a wealth of materials on African American history in one central location on the Internet. 