What is it? Zotero is a free citation management tool that allows you to easily collect, store and cite sources
How do I use it?
Register for an account at https://www.zotero.org/. Although you are not required to register in order to use Zotero, registering allows you to sync files on multiple devices and to share your sources with other users
Download either Zotero for Firefox and/or Zotero Standalone
What can I do with it? It is a web-based tool that integrates seamlessly with Firefox, allowing you to "grab" sources by simply clicking on an icon in your browser. You can then import your citations into Word to create in-text citations, footnotes and reference lists. Zotero supports a large number of citation formats.