|Country of origin||United States|
|Headquarters location||Plain City, Ohio|
Media Source is an American company based in Plain City, Ohio. It began in 1980 as Pages and changed its name in March 1999. It owns Horn Book, including The Horn Book Magazine, Junior Library Guild, Library Hotline, Library Journal (acquired in 2010), and School Library Journal (acquired in 2010). Also among its products is Digital Shift. Media Source was purchased by the private equity firm RLJ Equity Partners in 2011.
- "Company Overview of Media Source Inc.". Bloomberg Businessweek. Retrieved 10 April 2012.
- "Library Journal Bought By Ohio-based Media Source Inc.". LIS News. March 1, 2010. Retrieved 10 April 2012.
- "About", Digital Shift, Media Source, retrieved May 2014 Check date values in:
- RLJ Equity Partners, LLC Announces the Acquisition of Media Source, Inc.