ACM Home Page 
The Association for Computing Machinery (ACM) home page offers news and organization information, links to journals and proceedings, events, special interest groups, and membership.

ACM SIG links page 
The Association for Computing Machine is the host of several SIG groups which focus on technical areas within the information technology field. This page provides overview information of the ACM's involvement with the groups, as well as a comprehensive list of links to SIG organizations.

Crossroads: The ACM Student Magazine
Excellent collect of articles listed by various computer related areas (AI, computer architecture, programming languages, robotics, security, etc.)

Yahoo!'s ACM page
Yahoo!'s directory of ACM.