308536e3_ry___Citation_Management_Tools__RefWorks
[0] Is the tool web-based or does it require using your personal computer? [Zotero] Stores data on your computer; synching to the web is possible, but Zotero works best if you research on your own computer [RefWorks] 
Web-based; you can access your data from any computer with an internet connection
Oberlin College Library - Citation Management Tools
RefWorks