Public Domain Defined-
"A work of authorship is in the “public domain” if it is no longer under copyright protection or if it failed to meet the requirements for copyright protection. Works in the public domain may be used freely without the permission of the former copyright owner."
http://www.copyright.gov/help/faq/faq-definitions.html
The North Carolina Learning Object Repository (NCLOR) is designed to save all NC educators time and money!
This centralized repository houses your learning and teaching resources with secured, 24/7 access. You can also vet your content for copyright, manage and offer materials through websites and portals, and monitor content versions.