Teachers have been creating educational media for a very, very long time! Beginning with the earliest textbooks written by teachers and designed to help their students better understand course content, and evolving as media production tools became easier to access and use, educators have been producing, reusing, and sharing media for as long as classrooms have existed. In the classroom, traditional production media and tools include bulletin boards, craft paper, butcher paper, felt, magic markers, mimeograph machines, copiers, and computers with printers. Today, there are new media options and open educational resources (OERs) that allow anyone with a networked computer to create and share sophisticated instructional presentations that range from well-designed handouts to elaborate video productions. It is an exciting time to be a teacher, and we consider ourselves fortunate to have an opportunity to share our knowledge of new media and OERs with you.