What is the difference between a Bibliography and a Working Bibliography?    

Often you'll hear someone correctly refer to a listing of sources as a bibliography. This is not, however, to be confused with a working bibliography. 

As you do research, you'll want to make notes of several sources that might be useful for your paper.  MLA recommends that you use index cards to note interesting sources so that you can easily add to or delete various works and  can arrange them in any appealing order. Don't forget to copy down all publication information. It might also help to make a few notes about the work so that you'll remember what interested you about that source.   Only the works that you use when writing the paper will be compiled and presented in your Works Cited page. 
 

    No, it's not the same. An Annotated Bibliography (also known as an Annoted List of Works Cited)  is formatted just like a normal bibliography. However, there is a brief and critical commentary about the work. 
  

Morehouse, Dillon.  Timetables of Scandal. New York:  Dryden, 1987.  An illustrated survey of various periods of political upheaval from the early medieval ages to the modern era (1066 to 1980).