There is a community of talented artists, journalists, producers and musicians willing to share their work for in some cases nothing more than attribution.  If you are a trainer and you are not familiar with Creative Commons, you are in for a treat!

Creative Commons is a non-profit organization.  It offers copyright licensure options to those who are willing to share their work.  It's important that you read the various license types and that you respect the limitations that person has placed on their work.  There are some products posted that are protected by standard copyright.

Creative Commons is also a great place to legally download music of different genres.  Check out the
"Jamendo" tab to sample available music.