If you're a HelpDesk representative who will be fielding questions from users about using Google Apps, here are some resources to help you out.
HelpDesk Resources
Learn to:
Get tips on how to:
Contact Support
800-111-2222
support@yourdomain.com
Google Mail & Calendar Troubleshooting
(training slides)
Community
Blogs
Google At Work
Google Apps Updates
Email alerts
RSS feeds
HelpDesk setup and training tips
(Help Center article)