"The historians and students read vertically -- staying within the original website in question to evaluate its reliability." (Spector)
Vertical readers are often duped by unreliable indicators such as:
"The fact checkers read laterally -- quickly scanning the website in question but then opening a series of additional browser tabs, seeking context and perspective from other sites." (Spector)
Lateral readers exercise habits that lead to more thorough and efficient evaluation of information/sources such as:
Spector, Carrie. "Stanford scholars observe 'experts' to see how they evaluate the credibility of information online." Stanford University, 24 Oct. 2017, ed.stanford.edu/news/ stanford-scholars-observe-experts-see-how-they-evaluate-credibility-information-online. Accessed 1 Mar. 2018.