These online citation managers offer a convenient way to organize and keep track of your references.
EasyBib Free, automatic bibliography and citation maker.
Zotero Another free, easy-to-use Firefox extension to help you collect, manage, cite, and share your research sources.
NoodleTools A comprehensive MLA, APA, and Chicago/Turabian bibliography composer with fully-integrated note-taking.
BibMe Another automatic bibliography maker.