Source credibility theory identifies source expertise and source bias as elements that affect the credibility of an information source [66, 67]. Source expertise refers to the perceived competence of the source providing the information. A source should be perceived as more credible when it (1) possesses greater expertise and (2) is less prone to bias. Source bias, also conceptualized as source trustworthiness, refers to the possible bias/incentives that may be reflected in the source’s information [68]. Whether or not a message sender is perceived as an “expert” (and thus of high credibility) is determined from an evaluation of the knowledge that person holds [69], as well as if—by virtue of his or her occupation, social training, or experience—that person is in a unique position. Reputation is thus key to allocation of a value to information [70]. In the online environment, such evaluations must be made from the relatively impersonal text-based resource exchange provided by actors in the site network. Knowledge of the individuals’ attributes and background is limited, and evaluation will take place in a reduced-cues or altered-cues environment.