Trust can be improved when a Web site is well organized and provides users with material that is frequently updated. Respondents said that they tend to trust Web sites that are easy to access and easy to search. Another factor was content freshness. Fresh material is easier to trust than old material. As a whole, the survey provided some evidence for a simple folk theory of mine.
People tend to trust Web sites that are more usable.
Seemingly small things, such as spelling errors, quickly turn users off and their trust will drop. Trust is especially critical for web sites that sell products and services. Even a minor grammatical error can deter a sale. And for those sites that provide users with news, when there are usability problems, people tend to go elsewhere. Make sure that your content is audience-appropriate and user driven.