Ekiga (formely known as GnomeMeeting) is a soft phone, video conferencing, and instant messenger application for use over the Internet. It supports HD sound quality and video up to DVD size and quality. It is interoperable with many other standards compliant software, hardware, and service providers as it uses both of the major telephony standards, SIP and H.323.
Moodle is a learning management system for producing Internet-based course Web sites. It is written in PHP and is easy to install and use on Linux, Windows, Mac OS X, SunOS, BSD, and Netware 6. It has been designed to support modern pedagogies based on social constructionist theory, and includes activity modules such as forums, chats, resources, journals, quizzes, surveys, choices, workshops, glossaries, lessons, and assignments. It has been translated into over 70 languages, with more on the way, and supports the popular SCORM standard for content packaging. Moodle offers a free alternative to commercial software such as WebCT or Blackboard, and is being used by a growing number of universities, schools, and independent teachers for distance education or to supplement face-to-face teaching.
adept is a system for developing short courses for users needing to learn specific skills or knowledge. adept provides JIT ("just in time") learning, in contrast to the more usual "just in case" learning. It can be used as an intranet application to propagate knowledge to employees, or to educate customers via your homepage.
Claroline (ClassRoom online) is a collaborative learning environment that allows teachers or educational institutions to create and administer courses through the Web. The system provides group management, forums, document repositories, a calendar, chat, assignment areas, links, and user profile administration in a single, highly integrated package. It has been translated into 28 languages.
Dokeos is a Web application to manage learning and collaboration activities. It allows the teacher/trainer to create content, to structure activities along a sequenced path, to interact with students/trainees, and to follow their progress. It has been translated into 31 languages, and is used by more than 3500 organizations worldwide.
X-Plane is a flight simulator that reads in the geometric shape of any aircraft and then figures out how that aircraft will fly. It does this via an engineering process called "blade element theory", which involves breaking the aircraft down into many small elements and then finding the forces on each little element many times per second. These forces are then converted into accelerations, which are then integrated to velocities and positions. This gives X-Plane the most realistic flight model available for personal computers.