Wikimedia is a global movement whose mission is to bring free educational content to the world.
Wikimedia Foundation
https://wikimediafoundation.org/wiki/Home
https://en.wikipedia.org/wiki/Wikimedia_Foundation
The Wikimedia Foundation, Inc. is a nonprofit charitable organization dedicated to encouraging the growth, development and distribution of free, multilingual, educational content, and to providing the full content of these wiki-based projects to the public free of charge.
Wikimedia Commons
https://commons.wikimedia.org/wiki/Main_Page
A database of 30,392,069 freely usable media files to which anyone can contribute.
Wikimedia Meta-wiki
https://meta.wikimedia.org/wiki/Main_Page
Welcome to Meta-Wiki, the global community site for the Wikimedia projects and the Wikimedia movement in general. Meta-Wiki’s discussions range from coordination and documentation to planning and analysis of future Wikimedia activities.
Wikimedia Italia
Operiamo per diffondere il sapere libero e per sostenere i progetti Wikimedia, come Wikipedia, l’enciclopedia libera Italia.
Wikipedia
La enciclopedia libre.
Wikipedia: Education program
https://en.wikipedia.org/wiki/Wikipedia:Education_program
The end of throwaway assignments and the beginning of real-world impact for student editors.
The Simple English Wikipedia
https://simple.wikipedia.org/wiki/Main_Page
The Simple English Wikipedia is a Wikipedia encyclopedia, written in basic English.[1]
Articles in the Simple English Wikipedia use shorter sentences and simpler grammar than the English Wikipedia.
The Simple English Wikipedia is also for people with different needs. Some examples of people who use Simple English Wikipedia:
Students
Children
Adults who might find it hard to learn or read
People who are learning English
Other people use the Simple English Wikipedia because the simple language helps them understand hard ideas or topics they do not know about.
Wiktionary
The free dictionary.
Wiktiquote
Collection of quotations.
Wikibooks
Open-content textbooks.
Wikisource
https://wikisource.org/wiki/Main_Page
The free library.
Wikiversity
https://en.wikiversity.org/wiki/Wikiversity:Main_Page
Open Learning Community.
Wikidata
https://www.wikidata.org/wiki/Wikidata:Main_Page
Wikidata is a free and open knowledge base that can be read and edited by both humans and machines.
Wikidata acts as central storage for the structured data of its Wikimedia sister projects including Wikipedia, Wikivoyage, Wikisource, and others.
Wikivoyage
Travel guide.
Learning Lovers.org 