Make sure to collect sources that are relevant to your research question and check that your sources meet the requirements for your assignment.
Scholarly sources are available in both print and electronic forms. Traditionally, scholarly sources were books, journal articles, and newspaper articles. Today websites, blogs, podcasts, or videos can be suitable, depending on the subject of study.
Above is a graphic showing sources based on how current their information is, going from least current to most current.
Photos courtesy of Reference, Research, and Scholarly Services at the University of Illinois Urbana-Champaign. 4 Nov. 2014. Based on chart from Information Literacy Tutorial: Module 2 at University of Wisconsin-Milwaukee.