These are resources for accessing public domain images, etc. You will want to read the fine print to ensure that any resource you choose is public domain.
- http://www.loc.gov/
- http://compfight.com/
- http://www.openculture.com/2014/03/new-york-public-library-puts-20000-hi-res-maps-online.html
- http://www.openculture.com/2013/12/british-library-puts-1000000-images-into-public-domain.html
- http://dp.la/
- http://photogrammar.yale.edu/
- https://secure.flickr.com/photos/internetarchivebookimages
- http://www.pdsounds.org/
- http://publicdomain4u.com/
Dr. TODD A. COMER 