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Cartopedia: The Ultimate World Reference Atlas. Celestia. Google Earth - (proprietary license) Gravit - a free (GPL) Newtonian gravity simulator. KGeography. KStars. NASA World Wind - free software ( NASA open source) Stellarium. Swamp Gas Visits the United States of America - a game that teaches geography to children.

Online learning may refer to study in home Educational technology, or e-learning E-learning (theory) Distance education Virtual school Online learning in higher education Massive open online courses Online machine learning, in computer science and statistics This disambiguation page lists articles associated with the title Online learning.

Online environments applied in education could also involve the use of a virtual learning environment platform such as Moodle, Sakai, WebCT, Blackboard. Some of these are paid systems but some are free and open source such as Google+ Hangouts. [4]

Training is teaching, or developing in oneself or others, any skills and knowledge or fitness that relate to specific useful competencies. Training has specific goals of improving one's capability, capacity, productivity and performance.