CC Images
Here you can find images licensed under Creative Commons or Public Domain:
Public Domain
- http://www.public-domain-photos.com/
- http://publicphoto.org/
- http://www.public-domain-image.com/
- http://www.publicdomainpictures.net/
- http://www.sxc.hu/
- http://pixabay.com/ - Find and share stunning public domain images
Textures
Icons
Clip Arts
Others
Videos
Vimeo
Go to http://vimeo.com/search and click "Show Advanced Filters" on the right and select the desired license.