IDEA! Free Edition 

Highly flexible knowledge organizer and collaboration tool for the smallest project to the largest enterprise. Organize ideas, thoughts, questions, key information and related data in a simple, fast and efficient way during your daily work.
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BadBlue Excel Web Spreadsheet Collaboration Server 

Share Excel files, photos, music, videos, and business documents securely. BadBlue is one of the easiest web servers ever created. You can get started in seconds and it is much easier to use than an FTP server or Apache. Get BadBlue today!
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Software Planner 

Software Planner helps you to improve the quality of your software releases and decrease software maintenance costs by providing you with tools for managing all phases of the software lifecycle. Fully web-based and integrated with email.
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