Need help choosing where to begin your research?
Depending on your topic you might want to start by looking in books, journals, newspapers, or on the Web. The Purdue Online Writing Lab has some great information on conducting research and how to select the appropriate type of source.
This short video on The Information Cycle from the University of Illinois at Urbana-Champaign Libraries explains the publication cycle of the various information formats through the progression of media coverage of a newsworthy event.
This video "What is a Primary Source?" from the UCSD Libraries defines primary and secondary sources using the criteria of timing of an event recorded.