Semantic Scholar is a free academic search engine developed by Paul Allen, the co-founder of Microsoft. You can search the literature of academic journals, academic conferences and academic institutions on Semantic Scholar.
When searching for academic literature, we can not only find the literature in a specific year quickly through the time axis, but also find the literature we need more accurately through the powerful screening function.
2. Wikipedia (a multilingual encyclopedia collaboration project based on wiki technology is also an online encyclopedia written in different languages, whose goal and purpose are to provide freedom for all mankind) is an open encyclopedia.
Wikipedia is a collaborative project of free content, open editing and multilingual online encyclopedia. Through wiki technology, everyone can simply use a web browser to modify the content. The word "Wikipedia" is a new hybrid word created by the core technologies "Wiki" and "encyclopedia", which has the meaning of an encyclopedia.
3. Network Archives
Internet archives, as its name implies, are "Internet archives". You can search millions of free resources in Internet archives, including books, movies, software, audio and video, pictures and so on. The website also provides a very detailed screening function to help us find it more effectively.
4. Online Encyclopedia Britannica
The English encyclopedia published by the private organization Encyclopedia Britannica Press is considered to be the most famous and authoritative encyclopedia in the world today, and it is also one of the ABC encyclopedias widely known in the English-speaking world.
The entries in the Encyclopedia Britannica are written by about 100 full-time editors and more than 4,000 experts for educated adult readers. It is generally regarded as the most academic encyclopedia. This website is the online version of Encyclopedia Britannica.
5. World Book Encyclopedia
World Book Company was founded in 19 17, with its headquarters in Illinois. World Book Company has won many awards in the fields of encyclopedias, reference materials, digital products for families and schools. In recent 90 years, the company has been committed to publishing world encyclopedias and reference materials to meet the changing needs of the audience.