EndNote is a powerful research tool for managing your research and inserting formatted citations into your papers. Duke has a site license for EndNote and a web-based tool, EndNote Web, available for students, staff, and faculty. EndNote can be downloaded from the OIT website.
Zotero is an open source research tool that allows you to save, manage, and create formatted citations. Zotero is free and can be downloaded from the Zotero website. More information and links can be found here.