A "free" photo editor for Mac and PC. Could be a good alternative to Photoshop and GIMP for some basic editing features. A "pro" membership unlocks some advanced features.
This is totally personal. Thought it was worth sharing to the group. You can order a photobook right from your iPhone of photos that you've taken with your phone. $20. Looks pretty nice.
A group of creative-commons & copyright-free images from Miami University Libraries' Digital Collection. Includes historical images that range from MU to the Gutenberg Bible.
Getty is making many of their images free to embed on a site or blog as long as it is for non-commercial use. Could be good for the DDS blog or for faculty courses.