In fact, there is a whole zoo out there of various software programs that help you organize your citations. The most used are:
EndNote is a comprehensive citation management tool that is not free (in fact, it is rather expensive). However, some people swear by it. It can help you search for, organize and cite bibliographic information and it syncs your information across multiple devices.
Mendeley is a reference manager, PDF organizer and academic social network. You can install it on your desktop or just use it online. The free version only limits you in the number of people you can share folders with.
Zotero is a free Firefox extension that helps you not only with citations, but in fact it allows you to manage and collect your research sources. You can add basically anything: PDFs, images, audio and video files and snapshots of web pages. Zotero automatically indexes the full-text content of your library, enabling you to find exactly what you’re looking.
For a more extensive comparison, see this article on the university’s library website. The university also offers classes throughout the year on how to use the various citation managers, for a schedule click here.