The rumor-busting website Snopes provides sources for its articles in order to establish the rumor's existence. The sources further document examples of similar rumors being circulated.
Snopes is a website that addresses the legitimacy of rumors and myths. To do this, the editors state the rumor or myth, the status of the claim, examples of the rumor in the world and the origin of the rumor. The examples provided for the rumors generally come from newspapers, websites and emails. Snopes generally cites where these examples came from and in what year they were written. The sources may include books and other reliable documentation including the author's name, title of the work, publisher, the date of the publication and the page or section from which the information originates.