Collect citations by clicking the zotero icon in your URL bar that appears whenever Zotero recognizes a reference – whether you’re looking at a library catalog, a database, or another website. (Note: The Chrome default is now to display no plugins unti you "pin" them. If you don't see an icon in Chrome, just click on the puzzle-piece to the right of the url bar, and in the drop-down, click the pushpin icon next to "zotero.")
If you choose, Zotero can also be set to capture full text pdf’s and snapshots of web pages simultaneously.
You can also add citations to Zotero by:
Do you have a bibliography in an old paper you'd like to add to Zotero?