The internet provides open access to a tremendous amount of information, including peer reviewed, scholarly material. However, be mindful of your sources. Consider the following:
Authority - Who is the author? What is their point of view?
Purpose - Why was the source created?
Publication & Format - Where was it published?
Relevance - How is it relevant to your research?
Date of Publication - When was it written?
Documentation - What sources did they cite?
Below are reputable websites written by authorities in their subjects and provided for the improvement of public knowledge.