If you use an image in your work, you must cite it. This includes papers, presentations, theses/dissertations, publications, blogs, etc. Learn to use and cite images correctly.
This Code describes common situations in which there is a consensus within the visual arts community about practices to which this copyright doctrine should apply and provides a practical and reliable way of applying it.
General hub of information about copyright and fair use. Of note to music students and faculty are the guidelines for reproducing music in classroom settings and understanding fair use. This guide also encompasses broader issues other than music, such as using material from websites.
Founded in 2011, is an online journal and not-for-profit project dedicated to the exploration of curious and compelling works from the history of art, literature, and ideas.
Copyright Infringement by 
Copyright Law for Librarians and Educators by 
