The web can provide excellent resources for your topic, but if you are only using Google and Wikipedia to find information, you may not be finding all of the information that is available on you topic. If you are being asked to use scholarly resources use the resources you can find in the Cortland Memorial Library Catalog!
The Library of the University of Berkeley website provides a guide on how to "evaluate websites."
Professional Societies and Organizations often provide valuable information on their websites: publications, news, workshops and competition announcements.