An annotated bibliography is a works cited list, but each citation for your sources is followed by a paragraph of explanation and justification: why is this source one of your sources? What does it bring to your research?
You will summarize the relevant information you're getting from that source (but remember, this isn't your paper -- you are summarizing, not presenting all the information itself) as well as how this well help you in your research (by providing background information, by exploring a certain angle, by presenting a contrary idea...).
Creating an annotated bibliography is not simply an academic exercise. An annotated bibliography is a tool to help you summarize your source content and evaluate its place within your research. If a source satisfies your "usefulness" criteria, that source belongs on your annotated bibliography. This process begins the transition from reading sources to incorporating content (ideas, quotes, paraphrasing) into your work. It is time to "make sense" of the knowledge you have gained from your research. This knowledge is the foundation on which to build your own voice, explain your methodology, discuss your conclusions, make and report on your new knowledge.
Of course, evaluation of sources goes beyond "usefulness" to the other elements of authority, credibility, currency, and purpose.
Massaro, John. "Press Box Propaganda? The Cold War and Sports Illustrated, 1956." Journal of American Culture, vol. 26, no. 3, 2003, pp. 361-70. Academic Search Complete, search.ebscohost.com/login.aspx?direct=true&AuthType=ip,cpid&custid=s1088435&db=a9h&AN=10351835&site=ehost-live.
Paris, Václav. "On Surrealism and the Art of Crime: Considered as One of the Fine Starts." Journal of Modern Literature, vol. 33, no. 4, 2010, pp. 190-97. JSTOR, jstor.org/stable/10.2979/jml.2010.33.4.190.
Scott, Cord. "Written In Red, White, and Blue: A Comparison of Comic Book Propaganda From World War II and September 11." Journal of Popular Culture, vol. 40, no. 2, 2007, pp. 325-343. Psychology and Behavioral Sciences Collection, doi: 10.1111/j.1540-5931.2007.00381.x.
Schlosser, Eric. Fast Food Nation: The Dark Side of the All-American Meal. Houghton Mifflin, 2001.
Brown, Nathan, and Sheryle A. Proper. The Everything Paying for College Book. Adams, 2005.
Three or More Authors:
Bassis, Michael S., et al. Sociology: An Introduction. 4th ed., McGraw, 1991.
Stanley, Alessandra. “‘Mad Men’ Strains to Stay as Button-Down as Ever.” The New York Times, 13 Aug. 2009, nyti.ms/1V0CGfg.
Feder, Barnaby J. "For Job Seekers, a Toll-Free Gift of Expert Advice." The New York Times, late ed., 22 Mar. 1994, pp.A1+.
Note: websites are almost never scholarly, even if they can be reputable. If you've been asked to use scholarly sources for your assignment, a website is unlikely to count.
When you're adding the URL, delete the http:// portion at the beginning.
Hollmichel, Stefanie. "The Reading Brain: Differences Between Digital and Print." So Many Books, 25 Apr. 2013, somanybooksblog.com/2013/04/25/the-reading-brain-differences-between-digital-and-print. Accessed 14 June 2016.
Livingston, Michael. "The History Behind Game of Thrones: Daenerys Targaryen and Cleopatra." Tor.com, Macmillan, 11 July 2016, tor.com/2016/07/11/the-history-behind-game-of-thrones-daenerys-targaryen-and-cleopatra/.