By default, Zotero stores new citations in "My Library." You can create multiple folders, or "collections" to organize your research by topic, thesis chapter, or assignment.
A reference can be in more than one collection at a time. In other words, a book on the Civil War could be filed in your "Civil War" collection, your "Arkansas History" collection and your "19th Century America" collection without having to make three copies of the reference.
Click the Zotero button at the bottom of your browser to open your library. At the top left is a folder button with a green plus sign. Click this to create a new "collection."
Drag and drop citations to place them into collections.
It's easy to attach files (like PDFs) to items in your Zotero library. There are sevedral ways to add files:
Supported file types include PDFs, Word documents, image files, and more.
The true power of Zotero is in its note-taking functions. Zotero allows you to go beyond managing citations to developing a fully-searchable database of your research notes.
Notes can be standalone or be attached to a citation.
To add standalone notes, click on the Add Note icon in the Zotero toolbar and choose "Add Standalone Note."
To attach a note to a citation,highlight the item you wish to add a note to and
Zotero's new Groups feature allows you to share references with other Zotero users online. It's a great way to work on collaborative research projects.
First, set up Zotero sync as described on this page.
Next, log in at Zotero.org. There's a "Log In" link in the top right corner of the page.
You'll now have two sections in your Zotero collections pane: My Library and Group Libraries. You can drag items back and forth between them at will.