WIKIVERSITY where you can learn anything for free

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Wikiversity is a community for the creation and use of free learning materials and activities. Wikiversity is a multidimensional social organization dedicated to learning, teaching, research and service. Its primary goals are to:
Create and host free content, multimedia learning materials, resources, and curricula for all age groups in all languages
Develop collaborative learning projects and communities around these materials

Learners and teachers are invited to join the Wikiversity community as editors of this wiki website where everyone can edit the pages. The community portal lists information about many aspects of Wikiversity.