One of the best ways to find histories of specific media industries will be to look for scholarly books in the library. Combine keywords like "radio" or "television" with "history" here to start to browse books on the topic.
A great source for historical reviews and opinions about specific media technologies are these US historical newspapers. Use the names of specific technologies ("FM radio") and precise date filters (1938 - 1950) to find primary source coverage of specific media technology.
Media, Culture & Society provides a major international forum for the presentation of research and discussion concerning the media, including the newer information and communication technologies, within their political, economic, cultural and historical contexts.
Find articles from 350 international music journals, plus the New York Times and the Washington Post. Covers all types of music from classical to modern includes concert and music reviews. Useful for music education, performance, ethnomusicology, musical theatre, theory, popular music forms and composition.
Search or browse titles of American periodicals to quickly visualize their circulation over time and across the United States. A digital project out of James Madison University, using data from the Audit Bureau of Circulations (the Alliance for Audited Media).
Service from the Alliance for Audited Media that tracks circulation, data for newspapers, consumer magazines, business publications and farm publications from the US, Canada, and other countries. Includes audit circulation statistics for online editions.