The sources you decide to use depends a lot on your research goals.
For and overview or background on a topic, use:
For information on current events, use:
For scholarly information, use:
For additional sources from bibliographies or footnotes, use:
For emerging trends or new research ideas, use:
For news, products, trends, and practical information in an industry, use:
Peer-reviewed, scholarly articles
Books with footnotes or references
News
Streaming Videos
Diaries, journals, memoirs, blogs
Websites
When you are researching, there are three types of sources available:
Primary (eyewitness accounts, right here right now) can be used as proof of an issue
Secondary (interpretations of primary sources) can be used to support your argument
Tertiary (a collection of primary and secondary sources) can be used as a starting point to get background information on a topic