There are some really great digital tools that can help you organize sources and assemble bibliography and works cited lists in the most common research formats.  These tools are easy to use, (mostly) free, and they save so much time:

Zotero is your personal research assistant.  It is a free browser based plug-in that allows you to collect, organize, cite, and share your research sources.  And it stores anything–PDFs, images, audio, articles, and websites–all in your personal “library.”  Don’t let the term “plug-in” scare you.  Once you download the tool, it lives in your browser, freeing up valuable time to focus on writing.  Zotero allows you to create footnotes, end notes, in-text citations, and bibliographies in every academic format.

Docear is a open source reference manager that offers PDF metadata retrieval, free online back up, and a monitoring function for new files (images, PDFs, etc.).  It also has an MS word add-0n.  You have full control over your data, and there is no registration requirement.

Bib Me is a fully automatic bibliography maker that auto-fills.  It provides an easy way to build a works cited page in MLA, APA, and Chicago formats.  A professional account allows you to save every bibliography.

Cite This For Me allow you to automatically create website citations in APA, MLA, Chicago, or Harvard formats.  It also comes with a Google Chrome extension.