Free public domain images

I think I might have posted this before, but perhaps not exactly same list. Anyway, I hope it's useful.

Useful free graphics (all US gov't images are public domain unless otherwise noted):

http://www.angelfire.com/pa2/sacredspiral/
http://en.wikipedia.org/wiki/Category:Public_domain_images
http://en.wikipedia.org/wiki/Wikipedia:Public_domain_image_resources
http://serp.la.asu.edu/clipart_dir/clipartidx.html
http://www.rootgrafix.com/herbalnexus/photos.htm
http://www.ars.usda.gov/is/graphics/photos/
http://www.arthursclipart.com/
http://www.nal.usda.gov/curtis/secta.shtml
http://clippix.com/index.shtml
http://etc.usf.edu/clipart/index.htm
http://images.fws.gov/
http://www.firstgov.gov/Agencies/Federal/All_Agencies/index.shtml
http://www.anniemation.com/clip_art/graphics.html
http://geekphilosopher.com/MainPage/photos.htm
http://www.historyimages.com/
http://perso.orange.fr/cent.ans/menu/menu.htm
http://www.fromoldbooks.org/
http://www.kb.nl/kb/manuscripts/search/index.html
http://visibleearth.nasa.gov/
http://www.nps.gov/
http://www.classicnatureprints.com/index.html
http://pdphoto.org/index.php
http://www.pixelquelle.de/index.php
http://www.antiquemapsandprints.com/page0.htm
http://212.84.179.117/list.htm
http://www.princetonol.com/groups/iad/links/clipart.html
http://www.sacred-texts.com/index.htm
http://www.stockvault.net/gallery/
http://www.imagesonline.bl.uk/britishlibrary/controller/showtree

http://www.pictureaustralia.org/ -- not necessarily public domain, check first.

And of course http://www.flickr.com/ has pix with different levels of copyright.

Tagged: internet+resources