ACM digital library; 1999 began to provide; The contents include 7 kinds of professional journals, 10 kinds of professional magazines, 30 kinds of periodicals, nearly 250 kinds of academic conference proceedings, newsletters, SIG regular newsletters and the full text of publications of cooperative publishing institutions;

The collection years of various documents are not completely uniform. Some of them include the latest contents from the founding to the present, such as JACMAM Journal of 1954, and some only include the contents in recent years.

It also includes a bibliography of more than 48,000 papers, and provides links to about 200,000 references in about 50,000 articles published by ACM, of which 50,000 links can directly link to the full text.