For dating when work, shifts, travel, and limited free time shape what is realistic, outside sources matter mainly when a page states service features, prices, schedules, venue details, and other outside information that can change. A citation should give the reader somewhere useful to verify that claim; ordinary advice does not need a decorative source attached to every sentence.
When a source adds value
For changing facts, the first choice is usually the organization responsible for the information: a public agency, official service, venue, manufacturer, research publisher, or another primary source. Reputable secondary sources can add context when a primary source does not answer the whole question.
Where current information should come from
- It should support the specific claim next to it, not merely discuss the same broad subject.
- If a current price, rule, schedule, specification, or availability claim cannot be supported, the safer choice is to leave it out or tell the reader where to verify it.
- Opinion, interpretation, and stable advice should be recognizable from the wording rather than dressed up with unrelated citations.
What the citation needs to prove
Medical, financial, legal, immigration, and similarly sensitive subjects are kept general unless suitable authoritative information supports the detail being discussed. Personal decisions still belong with the relevant professional or official source.
When a guide relies on an external source, the relevant link should make the supporting material easy to check.