When using images that are not of your own creation you must always be careful to avoid copyright infringement. It is a complicated issue, but here are some points to keep in mind:
The four factors defining Fair Use:
For detailed information on Copyright and Fair Use see this Copyright Quick Guide from Columbia University Libraries - This page is licensed by a Creative Commons Attribution License with attribution to its author Dr. Kenneth D. Crews (formerly of Columbia University).
These images are licensed for use by the Rensselaer community. Rensselaer faculty, staff and currently enrolled students may display and or print these images without limitation for teaching and research purposes at Rensselaer. By accessing these images, you agree to the terms of the license agreement.
"Archivision" is an educational image resource for architecture, urban design, garden landscape, landscape architecture, and public art. Rensselaer Libraries has acquired the base package of the Archivision Digital Archive which is comprised of 16,000 images with extensive data. According to descriptions on their web site, the "Archive's Base Collection is a core architecture collection representing major Greek, Roman, Medieval, Renaissance, Baroque, 18th & 19th Century and Modern sites selected from our more than 100,000 slide archive."
Saskia Ltd. Cultural Documentation provides high quality digital images of works of art for scholarly study and research. Rensselaer Libraries has licensed approximately 3400 images from Saskia that are mounted on our campus-wide network and are for use by the Rensselaer community.
The best ways to avoid copyright infringement are to use images of your own creation, or use those made freely available or covered under an appropriate Creative Commons license. And be sure to always give proper attribution to the source and/or creator of the images.
Some sources of images that may be available to use:
Flickr Advanced Search - click on the "Any License" dropdown for license options
Google Advanced Image Search - use the "usage rights" filter to find the appropriate license
The art & architecture project from The Courtauld Institute of Art.
One thousand buildings and hundreds of leading architects, with photographic images and architectural drawings, integrated maps and timelines, 3D building models, commentaries, bibliographies, weblinks, and more.
Founded in 1999, arcspace.com in an architecture webzine that features today's most creative projects, as well as the most influential of the past. (from website)
Art Libraries Society of North America - a professional association whose members include architecture and art librarians, visual resources professionals, artists, curators, educators, and others interested in visual arts information.
Art history resources and news compiled by Dr. Christopher L. C. E. Witcombe, professor at Sweet Briar College.
A collection of photos documenting everyday life in the mid-twentieth century in the United States as well as other countries.
Cyburbia connects planners, students, academics, urbanists, and others who are interested in or help shape the built environment.
Art historical images of sculpture and architecture from pre-historic to post-modern.
The Met's Heilbrunn Timeline of Art History pairs essays and works of art with chronologies, telling the story of art and global culture through the Museum's collection.
A portion of the Armenian Architecture Photographic Archives Project.
"American Memory is a gateway to rich primary source materials relating to the history and culture of the United States. The site offers more than 7 million items from more than 100 historical collections."
International database for civil and structural engineers with information on the design and construction of projects around the world including profiles on the companies and individuals involved as well as product descriptions.
The Visual Collections site from Cartography Associates contains dozens of digital image collections from Museums, Universities and private collections throughout the world.
VRA is a multidisciplinary organization dedicated to furthering research and education in the field of image management within the educational, cultural heritage, and commercial environments.