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10 4
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1.85B 483.2M

Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

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305 14
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85.7M 3.4M

Wikimedia is a global movement whose mission is to bring free educational content to the world.

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436 152
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62.2M 29.2M

Learn how to do anything with wikiHow, the world's most popular how-to website. Easy, well-researched, and trustworthy instructions for everything you want to know.

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513 202
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53.7M 13.9M

Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.

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694 504
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40.9M 15.9M

Wiktionary.

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3,428 1K
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9.7M 4M

HowStuffWorks explains thousands of topics, ranging from the flu to black holes to conspiracy theories, with video and illustrations so you can learn how everything works.

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3,558 2K
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9.4M 3.6M

Wikisource.

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4,271 680
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8M 1.3M

無料ウェブ百科事典。DIGITALIOとC-POTが運営。出典が明確なコンテンツを収録し、信憑性の高さを重視する。

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4,852 1K
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7.1M 2M

Answers is the place to go to get the answers you need and to ask the questions you want

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6,286 1K
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5.6M 2.1M

Whether you're interested in history, science or culture, there's something for everyone on Reference.

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7,917 1K
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4.6M 813.8K

Wikibooks is a Wikimedia community creating a free library of educational textbooks that anyone can edit.

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8,402 1K
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4.4M 696.6K

Well-researched and entertaining content on geography (including world maps), science, current events, and more.

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9,121
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4M

India Map - MapsofIndia.com is the largest resource of maps on India. We have political, travel, outline, physical, road, rail maps and information for all states, union territories, cities, districts and villages.

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9,498 8K
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3.9M 1.7M

Home - Encyclopaedia Metallum: The Metal Archives.