Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
Quip: Team Documents for Slack - Create, share and get notified about Quip docs in Slack
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Trainual + Slack Integration - Capture knowledge or access training right inside Slack
Qiqqa - Qiqqa is a free research and reference management software. It can be used in many organizational projects from the academic to the personal to the business endeavor. Read more about Qiqqa.
Papermind - Papermind Slack App is a collaborative article-editing and document management platform for Slack