Audacity is free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems. You can use Audacity to record live audio; convert tapes and records into digital recordings; edit Ogg Vorbis, MP3, WAV or AIFF sound files; cut, copy, splice or mix sounds together; and change the speed or pitch of a recording.

FreeMind is free, open source mind mapping software from Softonic that enables you to visualize ideas, projects, concepts, brainstorming, internet research or any other task that can benefit from a structured overview. You can create nodes with child and sibling nodes and add icons, clouds, notes and custom formatting for better presentation. The nodes can be expanded or collapsed, or interactively linked to local files, other maps, online resources and more. You can also insert encrypted nodes or create encrypted maps for sensitive projects. The finished maps can be exported to HTML, clickable XHTML, Open Office document, image file and other formats.

The Visual Understanding Environment (VUE) is a free, open source concept mapping application written in Java. The application is developed by the Academic Technology group at Tufts University. The VUE project is focused on creating flexible tools for managing and integrating digital resources in support of teaching, learning and research. VUE provides a flexible visual environment for structuring, presenting, and sharing digital information.

GanttProject is a free and easy to use Gantt chart based project scheduling and management tool. Major features include:

• Task hierarchy and dependencies
• Gantt chart
• Resource load chart
• Generation of PERT chart
• PDF and HTML reports
• MS Project import/export
• WebDAV based group-work

GanttProject is GPL-licensed (open-source) Java based, project management software that runs under the Windows, Linux and Mac OS X operating systems. It features a Gantt chart for project scheduling of tasks, and doing resource management using resource load charts. It has a number of reporting options (MS Project, HTML, PDF, spreadsheets).

Project.net is a complete, web-based enterprise project management application that helps companies plan, execute and deliver on their entire portfolio of projects. Project.net is free Commercial Open Source. Project.net is currently used by more than 50,000 people worldwide to help manage their projects.

Moodle is a Course Management System (CMS) - a free, Open Source software package designed using sound pedagogical principles, to help educators create effective online learning communities. You can download and use it on any computer you have handy (including webhosts), yet it can scale from a single-teacher site to a University with 200,000 students. Moodle has a large and diverse user community with over half a million registered users on this site alone, speaking over 75 languages in 193 countries.

CourseLab is a powerful, yet easy-to-use, e-learning authoring tool that offers programming-free WYSIWYG environment for creating high-quality interactive e-learning content which can be published on the Internet, Learning Management Systems (LMS), CD-ROMS and other devices. And it is FREE!