Free photo-sharing sites

There are many different free photo-sharing sites on the web. This 2007 article from the N.Y. Times by David Pogue compares 8 of them.

Find images on Google that you can reuse – Google Support article

Some major sites:

• Flickr
• 500px
• Imgur
• Photobucket
• Instagram
• Imageshack

• Free Stock Photos: 74 Best Sites To Find Awesome Free Images – Feb. 5, 2015
• The Ultimate List of Completely Free Images: 43 Handpicked Services – March 8, 2015