Article · Wikipedia archive · Last revised Jun 29, 2026

Media Source Inc.

Media Source Inc. (MSI) 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, and School Library Journal, and Digital Shift. All of these holdings are under its subsidiary MSI Information Services, the primary trade name under which the company does business. MSI was purchased by the private equity firm RLJ Equity Partners in 2011.

Last revised
Jun 29, 2026
Read time
≈ 1 min
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Citations
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Source
Wikipedia ↗
Media Source Inc.
Founded1980
Country of originUnited States
Headquarters locationPlain City, Ohio
Publication typesMagazines
OwnerThe Vistria Group
Official websitewww.mediasourceinc.com

Media Source Inc. (MSI) is an American company based in Plain City, Ohio. It began in 1980 as Pages and changed its name in March 1999.1 It owns Horn Book, including The Horn Book Magazine, Junior Library Guild, Library Hotline, Library Journal (acquired in 2010),2 and School Library Journal (acquired in 2010),2 and Digital Shift.3 All of these holdings are under its subsidiary MSI Information Services, the primary trade name under which the company does business. MSI was purchased by the private equity firm RLJ Equity Partners in 2011.4

References

References

  1. "Company Overview of Media Source Inc". Businessweek. Bloomberg. Retrieved April 10, 2012.{{cite web}}: CS1 maint: deprecated archival service (link)
  2. "Library Journal Bought by Ohio-based Media Source Inc". LIS News. March 1, 2010.
  3. "About", Digital Shift, Media Source Inc., retrieved May 30, 2014
  4. RLJ Equity Partners, LLC Announces the Acquisition of Media Source, Inc.
External links