Wake County Media Services has created a Wiki to help answer your questions about copyright. It includes written works, pictures, video, or any other expressive work created by an individual. It can be complicated so use this resource to make sure that you are following the law! The definition of copyright is as follows:
Protection provided by the laws of the United States
Granted to the author of “original works of authorship”
Author has the exclusive right to do and to authorize others to: reproduce, prepare derivative works, distribute copies, perform the work publicly, display the work publicly (5 rights)
Sources for Copyright Free / Public Domain Images: