Papers by ReadCube - ReadCube Papers is a sumptuous reference manager helping out academic writers to get the most out when it comes to access and discovering more citations with multiple libraries or databases.
Pybliographer - Pybliographer is a tool that helps you manage your bibliographic databases in a user-friendly way.
I Librarian - I Librarian is an online tool that comes with a great way to handle and manage your PDF paper and office documents.
BibBase - BibBase.org is an easy way to set up and maintain a scientific publications page.
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
EndNote - Accelerate Your Research. Save time, stay organized, collaborate with colleagues and get published with EndNote 20.