  Recently, e-commerce has enjoyed the appearance of many novel opportunities
created as a result of the increasing growth of social networks. Social
commerce (s-commerce), an offspring of e-commerce, interconnects users and
helps with the commerce process facilitated by social networks as well as other
media. Uncertainty and trust are always an issue in any type of commerce and
especially in s-commerce where, due to its nature, a higher level of risk and
uncertainty exists. Despite the history for trust in virtual commercial
transactions, there are a limited number of researches on the topic; and the
current shift towards commerce in virtual communities and networks begs further
attention. Therefore, in this paper, by scrutinizing the available literature
on the topic, the affecting factors on trust in scommerce are identified and
introduced. Among the reviewed papers, 7 papers matched the criteria, and
overall, 19 factors were extracted. Firm size, trust disposition, information
quality, and familiarity with other members were among the most cited factors
in the literature.
