Abstract: A credibility engine creates individual credibility scores and network credibility scores that are distinguished from purely economic credit scores and which can be used to objectively rate a comparative value of credibility for entities and entity networks. The credibility engine analyzes credibility related information obtained from information providers and calculates corresponding credibility scores that are provided to information requesters. Some of the credibility related information used to create the credibility scores is obtained from surveys or reviews provided to primary and secondary sources having corresponding primary and secondary relationships with the entity. The entity can be an individual or organization.