Domain Bias in Web Search (by Microsoft Research)

This paper uncovers a new phenomenon in web search that we call domain bias — a user’s propensity to believe that a page is more relevant just because it comes from a particular domain. We provide evidence of the existence of domain bias in click activity as well as in human judgments via a comprehensive collection of experiments. We begin by studying the difference between domains that a search engine surfaces and that users click.

Source: https://www.microsoft.com/en-us/research/wp-content/uploads/2012/02/domainbias.pdf