Zotero (pronounced "zoh-TAIR-oh") is a citation tool that helps users collect, manage, and cite research sources. It's free, easy to use, and connects with your web browser to download sources.
Zotero allows you to attach PDFs, notes and images to your citations, organize them into collections for different projects, and create bibliographies.
Zotero can detect what type of resource you are viewing online, including articles, books, and webpages. You can then use it to find and save the full reference information. If the source is an online article or webpage, Zotero can optionally store a copy of the source as a screenshot. You can then add notes, tags, and related resources.
To use Zotero, you can either log into Zotero Online from their website, or download Zotero Desktop, which includes plugins that connect to your favorite browser (Chrome, Firefox, or Safari). Users can also install plugins for MS Word, Google Docs, and OpenOffice, so you can "cite while you write."