Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
SMASHDOCs - Web application for easily and quickly writing and reviewing documents within or between enterprises.
EndNote - Accelerate Your Research. Save time, stay organized, collaborate with colleagues and get published with EndNote 20.
Just Social - JUST SOCIAL provides all the collaboration tools like enterprise social network, real-time document collaboration
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Slite - Your company knowledge