· Little Visuals http://littlevisuals.co/
· Unsplash http://unsplash.com/
· Death to the Stock Photo http://join.deathtothestockphoto.com/
· New Old Stock http://nos.twnsnd.co/
· Superfamous (requires attribution) http://superfamous.com/
· Picjumbo http://picjumbo.com/
· The Pattern Library http://thepatternlibrary.com/
· Gratisography http://www.gratisography.com/
· Getrefe http://getrefe.tumblr.com/
· IM Free (requires attribution) http://imcreator.com/free
