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 will allow you to:
Collect books, articles, videos, etc, and have them all in one location
Easily create citations from databases and PittCat
Tag your citations for greater searchability
Attach PDFs, notes and images to your citations
Enter citations and bibliographies, in many formats (MLA, Chicago, APA, etc.)
Create in-text citations
Share your research and references with a group
Download and install Zotero from the Zotero website.
(There's a different version for each operating system: Windows, Mac or Linux.)
Connectors allow your web browser to save citations to your Zotero library.
The Zotero downloads page should automatically detect what browser you're using and give you a link.
Each browser has its own version of the Zotero connector, so if you use Chrome, Firefox and Safari you'll need to install all three.