I know many of us use images in our blog posts, in research, in idea boards, basically any number of places. The New York Public Library just uploaded nearly 200,000 images we can use for free. There are now available over 672,316 manuscripts, maps, photographs, lithographs, postcards, and other images online in high resolution and available for download.

http://digitalcollections.nypl.org/

A few images just for examples:

Old Map of Asia Black and White
Cover of the Negro Motorist Green-BookCouple in Warming Frame Japanese Art A ride at a fair with a tent saying "Life's Unborn"

About the author

DayAlMohamed Day Al-Mohamed is author of the Young Adult novel, “Baba Ali and the Clockwork Djinn.” She is also co-editor for the anthology, “Trust & Treachery” from Dark Quest Books. In addition to speculative fiction, she also writes comics and film scripts. She is an active member of the Cat Vacuuming Society of Northern Virginia Writing Group, of Women in Film and Video, and a graduate of the VONA/Voices Writing Workshop.