Confluence (by Atlassian) is a wiki tool used by project and production support teams for collaborating on requirements, posting project or individual status, publishing environment links, and much more.
Google Apps for Education provides email, calendar, chat, document management, group, and site support for undergraduates at Stanford. Faculty, staff, and graduate students have access to Google document management, groups, and sites.
Secure instant messaging (Stanford IM) is a centrally-funded service provided free-of-charge to the Stanford community. Stanford IM runs on a secure Stanford server and network and takes advantage of Kerberos-based authentication and SSL encryption. The service helps University staff to communicate securely about University business with their co-workers.
Email distribution services allow you to set up a mailing list addressed as email@example.com. You can manage lists via a web-based tool that allows you to view your lists, request new lists, add/remove members, approve subscription requests, and change list properties.
The Media Storage service fills the needs of a post-production video editing workflow. The service is a complete shared-storage solution that supports collaboration across Linux, Windows, and Mac OS X operating systems while supporting the broadest range of applications.
IP video conferencing integrates audio, video, and interactive collaboration tools to create a meeting experience in which globally dispersed participants feel as if they're in the same room. An IP video conferencing call control/transport service is in development for the campus community.