Copyright and Attribution are serious issues to consider when choosing to use images and sound created by others.
As listed here, there are many free image and sound resources which are ethically available from existing repositories under Creative Commons (CC) licensing. Author attribution is often all that is required to use these images and sounds for non commercial use.
Creative Commons and ‘non licensed’ search engines
CC Search is a search facility which provides convenient access to a number of search services for images and sound provided by other independent organizations. Please note that CC has no control over the results that are returned. You must check that the work is actually under a CC license by following the link. Please check the type of CC license and its usage terms before downloading. There is also a useful link to a Firefox browser CC tool to add to your tool bar to use when searching for images and sound.Featured image: Creative Commons cc by karindalziel