TEACH Act - What Is It and How Does It Affect Online Instruction?
The TEACH Act of 2002 specifically governs the legal uses of copyrighted materials in online instruction and distance learning environments.  The Copyright Clearance Center describes the TEACH Act and gives some brief guidelines on what is, and is not, allowable use of materials.

The TEACH Act and Guidelines for Using Copyrighted Works for Online Instruction
TEACH Act - Copyright Checklist
Checking to see if your use of material in your online course is legal according to the TEACH Act?  Use this great checklist developed by the University of North Texas Libraries to see if your proposed use of a material is allowed.

TEACH Act Checklist from UNT Libraries
Copyright on Campus - a Video Overview
Not sure how copyright affects higher education campuses?  This 6.5 minute video from the Copyright Clearance Center may give you a few basics.

https://www.copyright.com/learn/media-download/copyright-on-campus/
Copyright Exceptions for Instructors eTool
This free eTool, developed by Michael Brewer and the Copyright Advisory Subcommittee of the ALA Office for Information Technology Policy, allows you to answer a series of questions to see if your proposed use of a resource falls under the legal exceptions for instructors in copyright law.

Exceptions for Instructors eTool
Use of Video in the Physical Classroom
Interested in showing a film in your physical classroom?  This brief overview of copyright regulations governing the showing of video may be helpful.

Classroom Use of Videos
US Copyright Office
The official US Government website governing all things copyright.  Includes a section just for education, including a Fair Use Index, frequently asked questions on the use of copyright in education, and a searchable database so you can determine if a work is in the public domain.

US Copyright Office
Copyright Genie
Unsure if the work you want to use is covered by copyright law?  Use this free eTool from Michael Brewer and the Copyright Advisory Subcommittee of the ALA Office for Information Technology to determine whether the work is copyrighted and if so, what law might govern your use of it.

Coypright Genie
Fair Use Tool
Worried about whether your use of a copyrighted work is legal?  Evaluate your proposed usage with this fool from Michael Brewer and the Copyright Advisory Subcommittee of the ALA Office for Information Technology Policy.

Fair Use Tool