This is one of the primary online resources for art history. It can be assigned as a text or used modularly. There are over 1800 essays and videos with most art historical periods covered. There are no dedicated segments on materials, techniques, and media, however. These elements are sometimes covered as part of the discussion on discrete objects. The information and images are very good and are often linked to Khan Academy videos. Dr. Beth Harris and Dr. Steven Zucker are contributors and presences on many videos.
Jones, Muffet. "Smarthistory". OER Commons. Institute for the Study of Knowledge Management in Education, 30 May 2018. Web. 18 May 2024. <https://oercommons.org/authoring/29106-smarthistory>.
Jones, M. (2018, May 30). Smarthistory. OER Commons. Retrieved May 18, 2024, from https://oercommons.org/authoring/29106-smarthistory.