Founded in 2007, Douding.com is the world's largest Chinese-language social reading platform, providing users with everything of value to read. As of 2010, Douding.com has successfully ranked among the Internet's top 500 global websites and become one of the best websites providing vertical services. The website has a wide range of categorized practical documents, publications, industry research reports, and professional documents contributed by thousands of industry celebrities, with the total number of various types of reading materials exceeding 200 million. Doudin.com encourages originality, encourages sharing, and respects and maintains the rights and interests of uploaders. On Douding.com, you can share your documents and publish them to different blogs, forums, and various platforms through Douding for wide dissemination, as well as see popular books, magazines, and all kinds of professional literature in a very environmentally friendly and inexpensive way.

Douding.com (Docin) is the world's premier C2C document sales and sharing community. Docin allows users to upload documents in dozens of formats, including .pdf, .doc, .ppt, .txt, etc., and display them directly to readers on the web in the form of Flash Player. In short, Doudin is like a document version of Youtube, with tens of thousands of documents uploaded to Doudin every day, and based on this, Doudin is committed to building the world's largest Chinese language library.