Functionality: Mendeley is a reference manager that is accessible online and on your desktop. You can download their desktop app, so that you have access to all your sources on your desktop. Furthermore, they have a web browser plugin, so it is easy to add sources to your library as you are finding them online. Within the application, you are able to organize, annotate, and cite your documents. Similar to Zotero, but particularly useful for annotating documents.
System Requirements: Windows, Mac, Linux and all browsers.
Delivery Methods Supported: Research, class readings
Subject Applicability: Applicable to all subjects. Particularly useful for subjects with lots of readings.
Security Concerns: None
Pricing Model: Free; upgrade to Premium for additional storage and features