For any research project, nothing beats an article from Britannica to serve as an overview. Britannica will also lead you to academically-vetted Web content, as well as full-text magazine articles.
Because of the breadth of content, some students use Britannica as a one-stop destination for all their needs, especially for shorter assignments. Watch out for a European bias here, because some topics unique to the U.S. get ephemeral treatment.
In-depth, unbiased reports covering "...political and social issues, with regular reports on topics in health, international affairs, education, the environment, technology, and the U.S. economy."
A great place to start your research, Credo offers Reference articles on just about any topic, and allows you to launch further article and library book searches directly from your results page.