Copyright Tools
Here are two easy-to-use tools that might be helpful for anyone with a question about whether or not an item is protected by copyright:
Copyright Digital Slider
http://librarycopyright.net/digitalslider/
This tool, from the ALA, is a quick and easy way to determine if a work is in the public domain or if permission is needed for its use.
Copyright Term and the Public Domain
http://www.copyright.cornell.edu/public_domain/
This chart, from Cornell, contains a lot more detail, but it is well-designed and still very easy to use.
