SpaceX Photos Flickr
Founded in 2002, SpaceX is an American company that “manufactures and launches advanced rockets and spacecraft”. Their Flickr account shares photographs of their rocket launches and space missions.
Ernst Haeckel’s Kunstformen der Natur (1904)
Kunstformen der Natur (or known in English as Art Forms in Nature) is a book of prints by German biologist, Ernst Haeckel. The geometric shapes and natural forms captured precisely by Haeckel continue to inspire artists and scientists. Via Wikimedia Commons, you may access more than 100 illustrations from the publication.
BILDGEIST
BILDGEIST is a “visual journal of scientific illustrations, illuminated manuscripts, photographs, prints and artworks from the public domain”. The images are of various themes including astronomy, alchemy, mythology, cartography, anthropology, zoology, botany, and general curiosa. Users can filter the contents by period, categories and keyword tags.
Paul K (Peacay) Bibliodyssey Flickr
This collection is a cabinet of curiosities compiled by Sydney-based Paul K (also known as PK or peakay). It contains rare book illustrations and drawings from digital repositories, covering a wide range of “styles, topics and time periods… from astronomy to zoology and from Art Nouveau to the Renaissance”, as indicated by PK. Each set of images are accompanied by a URL linking to the bibliodyssey website that contains the background commentaries. A book titled “BibliOdyssey : archival images from the Internet” was also published in 2007 based on the compilation. As of October 2015, more than 10,000 images have been uploaded to Flickr.
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.
qthomasbower Visual Mashups
This site features visual mash-ups, mosaics, blends and collages created by QThomasBower. As of September 2015, there are about 400 works uploaded.
Project Apollo Archive (Flickr)
The Project Apollo Archive was first created in 1999 by Kipp Teague. It contains photographs pertaining to the historic manned lunar landing program – Apollo. According to Teague, the archive is “a re-presentation of the public domain NASA-provided Apollo mission imagery as it was originally provided in its raw, high-resolution and unprocessed form by the Johnson Space Center on DVD-R and including from the center’s Gateway to Astronaut Photography of Earth web site”. All digital images are scanned from the original photographs taken by Hasselblad cameras.
Divvy Pixel Free Public Domain Images
Divvy Pixel curates public domain images from various sources. Images provided on their main site and online galleries are on public domain and can be used personally or commercially. Users can browse and download the images individually or all at once.
LIFE Photo Archive
The LIFE Photo Archive is a comprehensive archive of photographs and etchings that are produced or owned by the defunct LIFE Magazine, dating back to the 1750s. Captured by LIFE photographers and photo journalists like Alfred Eisenstaedt and Margaret Bourke-White, the photographs documented important events in the world, evolution of fashion and lifestyles and the lives of celebrities and everyday people. According to Google, most of the photographs have never been published. Started in 2008, users can search for millions of images from the LIFE archive, which contains about 10 million photographs. Users can do a keyword search by adding “source:life” to any Google image search. For example, “vietnam war source:life”. Alternatively, users may browse by different categories.
Google Material Icons
Google developed a visual language that “synthesizes the classic principles of good design with the innovation and possibility of technology and science”, which they called “material design”. Google retains a living document of specifications of the material design. As part of the specifications, Google provides a library of system icons, created based on Google’s design principles, for download. Users can search or browse the icons arranged by categories.
Raumrot.com
Raumrot.com presents “free, handpicked stockphotos” for commercial and personal uses. As of July 2015, there are 681 of such images. Users can browse by categories or by special image sets.
MNML Wallpapers
MNML provides minimalistic wallpapers designed by social media marketeer, AJ Montpetit.
Display
Display is “a curated collection of important modern, mid 20th century graphic design books, periodicals, advertisements and ephemera”. Developed by Kind Company, a web and print design agency based in New York, the intention was to spread awareness of Graphic Design as “a source of educational, historical and scholarly analysis for teachers, students, designers and independent researchers”. Images from Display are digitised from original items within the collection.
Freepik
From vectors to PSD files, icons and stock photos, Freepik provides resources for graphic and web design. As of August 2015, the site has received more than 440 million downloads. Developed by “a team of designers, developers, professionals of marketing, communication and administration” based in Spain, Freepik offers two types of content: free and exclusive graphic resources by Freepik, and graphic resources belonging to others. Users can search or browse by categories.
Vintage Printable
Vintage Printable provides images that are believed to be on public domain or out of copyright. Most of the images are focused on vintage naturalist or scientific illustrations. Users can search or browse by different categories.
Pexels
Developed by German web developers, Pexels provided handpicked stock photos from free image sources, such as Unsplash and Gratisography. To date, there are over 3,000 images that are on Creative Commons zero (CC0) license. Users can search or browse the images.
StockSnap.io
StockSnap contains curated images by Marc Chouinard and Christopher Gimmer. The images are from around the web and photographers from their network. Users can search or browse by date, trending, number of views, number of downloads and number of favourites.
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.
IM Free Collections
Provided by web design agency, IM Creator Ltd., IM Free Collections is “a curated collection of free web design resources”. The images are from various image sources that provided these images on Creative Commons licenses. Users can search or browse by various categories.