Functionality: Zotero is very similar to Mendeley in that it offers desktop and web browser functionality for collecting and organizing research materials. Zotero is particularly helpful if you want to also archive web pages, not just journal articles and other documents.
System Requirements: macOS, Windows, Linux; chrome, Firefox, or safari for Zotero Connector
Delivery Methods Supported: Research, course readings
Subject Applicability: Applicable to all subjects. Particularly helpful for modules with lots of readings.
Security Concerns: None
Pricing Model: Free (300MB storage limit), $20/year (2GB), $60/year (6GB), $120/year (unlimited)