Secondly, the information resources of digital library also include academic papers, research reports, dissertations and other academic research achievements from academic institutions, research institutions and academic journals. The digital storage and online publication of these research results make these academic resources one of the important information sources of digital libraries.
In addition, digital libraries can also obtain information resources through cooperation with other libraries and cultural institutions. By establishing cooperative relations with libraries all over the world, digital libraries can obtain rich resources from different regions and disciplines and enrich their own information resources.
In addition, digital libraries can also grab data through the Internet to obtain information resources. There are a large number of open access resources, open source databases and various web page information on the Internet. Digital library can collect these resources through tools such as web crawler and integrate them into its own information resource library.
Finally, the information resources of digital library can also come from the content uploaded and appreciated by users. Digital library provides a platform for users to upload their own content and share their knowledge and experience. The content uploaded by users can cover all fields and enrich the information resources of digital libraries.
To sum up, the information resources of digital libraries mainly come from the digital transformation of traditional libraries, academic research achievements of academic institutions and academic journals, cooperation with other libraries and cultural institutions, data captured by the Internet and content uploaded and appreciated by users. The diversity and richness of these sources provide rich information resources for digital libraries and meet the needs of users for all kinds of knowledge and information.