Zotero is an amazing free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources (citations, full texts, web pages, images, and other objects), and lets you share the results of your research in a variety of ways.

Zotero integrates tightly with online resources; it can sense when users are viewing a book, article, or other object on the web, and—on many major research and library sites—find and automatically save the full reference information for the item in the correct fields.

Zotero is a production of the Center for History and New Media at George Mason University.