Lateral Reading for Online Claims

When a claim appears online, readers often stay on the page and inspect its language, design and “About” section. Lateral reading takes a different route: open other sources and investigate the publisher, author, evidence and coverage. Stanford History Education Group researchers Sam Wineburg and Sarah McGrew studied how professional fact-checkers, historians and students evaluated digital information; their work describes fact-checkers leaving a site to investigate it elsewhere, then returning with better context.

Use lateral reading when the source is unfamiliar, the claim is consequential or the page has a strong persuasive agenda. Search the organization’s name with independent terms such as its funding, corrections, expertise or criticism. Look for reporting from sources that are not merely copying the same release. Check whether a quoted expert actually said the claimed words and whether the original evidence supports the summary. When coverage conflicts, inspect the underlying documents and explain the disagreement rather than counting search results.

Lateral reading is not a popularity contest. Many pages repeating the same claim may derive from one source. A small specialist organization can be useful if its expertise and methods are transparent. The purpose is to learn what you are reading before giving it weight, not to label a source permanently “good” or “bad.” A source may be reliable for one topic and weak on another.

Keep a record of what you checked: publisher background, independent coverage, original sources and unresolved questions. Then return to the original page to understand its specific evidence and wording. If you cannot verify a claim, say so and avoid amplifying it as fact. Lateral reading complements close reading: it establishes context, then helps you decide which details deserve deeper inspection.