During the study, one of the researchers asked a study participant, "What is this website?" The student answered, "Oh, I don't know. The first thing that came up."
That exchange sums up the overall results from this study: many students trusted in rankings above all else. In fact, a quarter of the students, when assigned information-seeking tasks, said they chose a website because - and only because - it was the first search result.
Full article at ReadWriteWeb