Media Source Inc.
American magazine publishing company

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 (acquired in 2010), and School Library Journal (acquired in 2010), 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.
The public source identifies “Media Source Inc.” as american magazine publishing company. This brief keeps that definition visible, then builds a research path around Media, Source and American.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Media Source Inc.”, the useful work is to connect “american magazine publishing company” to the records capable of establishing context and consequence.
Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Sep 5, 2026. The linked authority identifier is Q6805539. 2 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1980, 1999, 2010 and 2011.
Institutional narratives can privilege the records that survived while minimizing voices that were never formally collected. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.
- Event chronology
- Institutional context
- Locating named record creators
Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.
Three-step research path
- Establish the record: confirm the title “Media Source Inc.”, its source revision and the description used here.
- Expand the search: follow Media Source Inc. primary sources, Media Source Inc. archive and Media research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Media Source Inc.”?
- What chronology connects this entry to wider political or social change?
- Which voices are present, absent or mediated by the institution?
Search terms from this dossier
This entry incorporates text from “Media Source Inc.” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.