Trusting Googles rankings

Students trust it to much apparently. My view is that for informational, as opposed to navigational or transactional searches, you need to look at more than one page of results (users tend to view only the first page of results, and in fact very rarely scroll down to look at all of them). Students take note! Quality and source of information provided in your assignments is very important (e.g. try not to use Wikipedia to much). Academic study is available here.