Public Domain Images

Yep, that means free for use. Although I'm sure you're always careful to check copyright on any images you use, this may help ease your conscience!

The Wikipedia is sometimes maligned because of its open editing community, but it remains one of my favorite sites and we'll talk more about it as the year goes on. This page in particular is a treasure trove. Be sure and check out the research resources box near the top right while you're there--it links to public domain sounds and a couple of other goodies.

Link via Micro Persuasion