... Creative Commons
... we find images, in order to media that we can use cul…
we find images, in order to use cultural and personal materials responsibly?
Specific websites that
Stock.xchng advanced image search -- be sure to set the "Restricted OK" field to "No" so the search won't retrieve pictures with more restrictive licenses.
Morguefile.com -- attribution only
Open Clip Art -- no attribution necessary
Wikimedia Commons -- attribution only