EndNote, Zotero, RefWorks, ProCite, Reference Manager are all examples of Bibliographic Management Tools. These tools provide the capability to store and organize your research materials. You can export citations from databases and web sites, annotate, create bibliographies, and footnote from these tools. To learn more about these tools and to figure out which one is right for you and your research needs, go to Comparison of Features of Bibliographic Tool Managers. UC-Berkeley developed this helpful chart. While the prices are specific to UC's products, the chart compares the features of the tools that are the same across the board.
Yale Library offers workshops on how to use these tools. Check here for available dates and times.