EndNote Basic (formerly known as Endnote Web and also known as Endnote Online) is a simplified, web-based version of the EndNote citation management program. As long as you have an internet connection, you can search the Web of Science or any free database (PubMed or library catalogs), import citations, import citations from a text file, and store and organize citations in EndNote Basic.
A free account can be created here.
EndNote Basic Features
EndNote Basic Limitations
Cite While You Write for Microsoft® Word is a plug-in that inserts references and format citations and bibliographies automatically while you write your papers in Word.
To download, install and use the plug-in, click "Help" and then find the version appropriate for your computer and follow the instructions under the "Plug-ins" section.