Range of materials including syllabi, course activities, and assessments created by faculty, instructional designers, librarians, other experts. Some of these materials are intended to be paired with textbooks.
Open Modernisms is a Creative-Commons-licensed (CC-BY) resource that allows users to search, remix and create customized content using primary source works in the humanities from approximately 1890-1940. All items are in the public domain in Canada, where the site originates. Instructors and scholars of modernism can build custom anthologies or coursepacks.
The Saylor Foundation's free education initiative has focused on driving the cost of education to zero and expand access to quality open educational resources. To date there are over 270 free, self-paced, college level courses, created by credentialed professors.
A catalog of information about some of the top examples of open college textbooks, offered online under a license allowing free digital access and inexpensive print options. Material can be easily modified to fit your needs.
"The Creative Commons copyright licenses and tools forge a balance inside the traditional “all rights reserved” setting that copyright law creates." This link illustrates the licenses on a spectrum, from the most open to the most restrictive, and offers examples of each.
The American Library Association's guide to fair use and its limitations.