Independent reference publishing · Amsterdam

Reference sites people actually use.

Caslon Media builds and runs reference websites — school reading lists, investing research from SEC filings, AI-search visibility indexes, product spec databases — researched from primary sources, kept fast, and built to be cited.

See our brands Audience & figures

32reference sites, live

~26,000readers a monthmeasured, stated as a floor

8content families

100%founder-ownedself-funded, no investors

Our most-read brands

All 32 brands →

readinglist.schoolOfficial school reading lists for every US state, organized by grade and curriculum.~9,800/moVisit → sourcescore.orgThe AI-citation quality index: which sources ChatGPT, Perplexity and other AI engines actually cite, scored by domain.~6,200/moVisit → colorcombinations.orgA working reference library of color palettes and combinations.~2,700/moVisit → readstacks.comChapter-level guides to the most-read nonfiction books.~2,700/moVisit →

Books & Learning 8 Search & AI Visibility 2 Reference & Data 5 Investing & Finance 2 Home, Local & Moving 4 Product & Spec Databases 8 Food & Kitchen 2 Marketing & Conversion 1

How we work

Research

Every site starts from a real, finite dataset and primary sources — state education departments, SEC filings, published standards, manufacturer specifications.

Verify

Every fact traces to its source. If we can't verify something, we leave it out. No padding, ever.

Publish

Fast, quiet pages with the answer at the top. Few ads, clearly separated. The kind of page you'd bookmark.

Maintain

Sites are kept, not churned. Data gets re-verified, dated, and corrected in the open.

Read our editorial standards → Meet the team →