Os 100 Mais Populares Referência Sites
Conheça o novo topo Referência sites do mundo com base em classificação, tráfego e engajamento tal como wikipedia, quora ou wikimedia.
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
Quora - Un lieu pour partager le savoir et mieux comprendre le monde.
Wikimedia is a global movement whose mission is to bring free educational content to the world.
Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 624 billion archived web pages.
Paris - Avis d'utilisateurs et recommandations sur les meilleurs restaurants, magasins, divertissements, services et plus encore sur Yelp
知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视、时尚、文化等领域最具创造力的人群，已成为综合性、全品类、在诸多领域具有关键影响力的知识分享社区和创作者聚集的原创内容平台，建立起了以社区驱动的内容变现商业模式。
Access 130+ million publications and connect with 20+ million researchers. Join for free and gain visibility by uploading your research.
OpenStreetMap is the free wiki world map.
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Current Time (World Clock) and online and printable Calendars for countries worldwide. Find the best time for web meetings (Meeting Planner) or use the Time and Date Converters. Online services and Apps available for iPhone, iPad, and Android.
Dictionary.com is the world’s leading online source for English definitions, synonyms, word origins and etymologies, audio pronunciations, example sentences, slang phrases, idioms, word games, legal and medical terms, Word of the Day and more. For over 20 years, Dictionary.com has been helping millions of people improve their use of the English language with its free digital services.
Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.
The dictionary by Merriam-Webster is America's most trusted online dictionary for English word definitions, meanings, and pronunciation. #wordsmatter
First published in 1869, Nature is the world’s leading multidisciplinary science journal. Nature publishes the finest peer-reviewed research that drives ground-breaking discovery, and is read by thought-leaders and decision-makers around the world.
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.
Foursquare is the most trusted, independent location data platform for understanding how people move through the real world.
Weather Underground provides local & long-range weather forecasts, weather reports, maps & tropical weather conditions for locations worldwide
Toutiao.com is ranked number 1064 in the world and links to network IP address 123.58.9.80.
The world’s largest and most trusted free online thesaurus. For over 20 years, Thesaurus.com has been helping millions of people improve their mastery of the English language and find the precise word with over 3 million synonyms and antonyms.
Explore National Geographic. A world leader in geography, cartography and exploration.