Bloomerang - Bloomerang is a simple donor database and fundraising software solution that helps nonprofits decrease donor attrition and increase revenue.

Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.

Kindful - Nonprofit donor database + fundraising tools all in one

Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

Classy - Expressive, flexible, and powerful stylesheets for native iOS apps

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.