C-Organizer - C-Organizer is a robust software tool designed for the professional manager that permits them to organize business activities altogether.

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

Info Select - Info Select is a Personal Information Manager that organizes Internet data, notes, to-do's...

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

AllMyNotes Organizer - AllMyNotes Organizer is a multi-functional hierarchical information manager for Windows.

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.