Includes current issues, list of upcoming articles, background and resources.

Includes on-line versions of articles, author guidelines and editorial calendar.

Includes information on the editorial board, accepted papers, and submission information.

Subscription information, editorial board and related links.

Includes articles, past and present, search function and links.

Includes on-line published issues, subscription information and submition instructions.

Subscription information, past articles and related sites.

Includes articles indexed by volume number and submission information.

Software associated with other ACM journals.

Includes an overview, subscription information and published articles.

Includes indexed articles by volume and issue number, editorial board and author information.

Current issues, previews of upcoming articles and special issues.

Includes subscription information, on-line versions of the articles, search function and guestbook.

Includes submission information, editorial board and published articles.

Includes staff information, published issues, and mission statement.