Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Mailshake - Mailshake lets you build your professional network through a smart and intuitive approach to cold emailing.
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.
Instantly - Build your own infinitely scalable cold email outreach system with Instantly.
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .
Snov.io - Sales engagement on autopilot.