Google Scholar is a freely accessible web search engine that indexes the full text of scholarly literature across an array of publishing formats and disciplines. Released in beta in November 2004, the Google Scholar index includes most peer-reviewed online journals of Europe and...

Google Scholar is the most popular Web-based alternative to OA.mg.
Google Scholar is the most popular free alternative to OA.mg.
- Google Scholar is Free and Proprietary








































Has all the same features with a more complete dataset. Especially covering Chinese-language scholarship. Most of the website has english translations that makes it usable for english speakers