Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
MobileCause - Online event and fundraising management for nonprofits
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.
Keela - Helping small nonprofits make a BIG impact!
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .
Give by Cell - Give by Cell is the nation’s leading provider of mobile fundraising solutions to non-profit organizations with more than 2,500 clients.