Zotero (pronounced "zoh-TAIR-oh") is an application that collects, manages, and cites research sources. It's easy to use, connects with your web browser to download sources, and best of all it's free.
Zotero allows you to attach PDFs, notes and images to your citations, organize them into collections for different projects, and create bibliographies.
Register for a free Zotero account (detailed instructions below)
You can use any email address to create an account.
Download Zotero (detailed instructions below)
Download both Zotero and the Zotero Connector