Berryman (2008) speaks about judgments in information seeking behavior, stating that “under the broad umbrella of rational decision theory, two major strands of thought are evident: classical, or optimal, decision theory, and behavioral decision theory” (p. 3). She adds:

There are decisions involved when using and searching for information, first the way to actually search for it even if unconscious is a search strategy: how and where I am going to try to find information. The “where” involves a relevant resource. The decisions a person makes when searching and using information are influenced by this person's experience.

Jungermann (2000) (as cited in Berryman, 2008) sees decision making as a ‘multistage cognitive process’, composed by three phases: identification or recognition of the problem, consideration of alternatives for action, and selection of the alternative. The decision making process is being made when user consider his or her alternatives and choose between them, uncertainty reduction, the familiarity of the situations, and the construction of mental models affect the decision making process. As with any information sources or systems, it is interesting to find out how users behave in this respect when using social networks, for example how do they choose which feeds to follow and what they decide to read.