See schedule of RefWorks, EndNote, and Zotero classes at NYU (coded in pink)
EndNote: NYU has a campus-wide license to this software, which you download (at no cost to you) to your laptop or desktop computer. The software includes a less developed web-based component called EndNoteWeb, which can be used to sync across multiple personal computers.
RefWorks: NYU purchases a campus-wide subscription to this web-based service that covers all members of the NYU community. Because RefWorks is web-based, you can use it from any Internet-connected computer/device on campus or off.
Zotero: A free download that works with your web browser. There are two options: Zotero for Firefox is a Firefox-specific extension that offers the full range of functionality. Zotero Standalone -- a separate browser-independent application that can be used with Chrome, Safari, or Opera -- offers slightly less functionality than the Firefox extension.