Google can be a great source of information, even if that information is not necessarily scholarly. Google can be a useful source of background information as well as grey literature. When using Google, it is important to consider the timeliness and relevance of the sources, and find out information about the author of the information - are they a trusted authority in the area you are studying?
Below are some tips and tricks that will help you to harness Google's power to better meet your needs (click on the link to download a PDF version):