The U.S. National Archives Flickr

The National Archives and Records Administration (NARA) or National Archives is a “record keeper” of the United States Federal government. Besides contributions from the National Archives, the Flickr account contains photographs from the National Archives and the federal photography project called Project DOCUMERICA (1971 – 1977). The project was initiated by the Environmental Protection Agency (EPA) to capture the environmental problems and achievements of that era.

Wikimedia Commons

Wikimedia Commons is a “media file repository” of public domain and freely-licensed educational media content, including images, sounds and video clips. Launched on 7 September 2004 by the Wikimedia Foundation, Wikimedia Commons uses the “wiki-technology” that is the same technology used in Wikipedia. Wikmedia Commons also aggregates files from other projects, including Wikipedia, Wikibooks, Wikivoyage, Wikispecies, Wikisource, and Wikinews. As of October 2015, there are more than 28.7 million files in more than 120,000 collections. Users can conduct a keyword search or browse the content by topic, type, author, location, license and source.

OMCA Political Posters

This collection was started as part of the “All Of Us Or None” (AOUON) archive project by Free Speech Movement activist Michael Rossman in 1977. The objective was “to gather and document posters of modern progressive movements in the United States”. The collection contains more than 20,000 political posters with a focus on “the domestic political poster renaissance that began in 1965 and continues to this day”. Users can search or browse the images.

Callisphere by UC Libraries

Callisphere is “the University of California’s free public gateway to a world of primary sources”. Powered by the California Digital Library (CDL), the platform currently have more than 230,000 images, contributed by 139 archives, libraries, museums, and historical societies in California. Users may search or explore the images across different themes or topics.

Public Domain Review Collections

Developed by The Open Knowledge Foundation, The Public Domain Review is “an online journal and not-for-profit project dedicated to promoting and celebrating the public domain in all its richness and variety”, as according to the website. Images in their collections are derived from a wide range of online archives, that are on public domain. The images are arranged by topics, where users can search or browse by time, style, genre, type, content and rights.

Ad*Access by Duke University (Libraries)

Funded by the Duke Endowment “Library 2000” Fund, Ad*Access is a project that presents images and database information for over 7,000 advertisements printed in U.S and Canadian newspapers and magazines between 1911 and 1955. The images provide a perspective of major campaigns and companies in 5 main areas: Radio, Television, Transportation, Beauty and Hygiene, and World War II.

Prints & Photographs Online Catalog (PPOC)

Driven by the LOC Prints & Photographs Division, PPOC contains catalog records and digital images from their holdings. These includes photographs, fine and popular prints and drawings, posters, and architectural and engineering drawings.