Zotero
Open Source
Zotero is a powerful, easy-to-use research tool that helps you gather, organize, and analyze sources and then share the results of your research.
Paperpile
Commercial
Paperpile is a web-based reference management software, with special emphasis on integration with Google Docs and Google Scholar.
Flamory
Free Personal
Flamory saves a copy of every web page or file that you see on your screen.
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