Your First Days
If you just switched to Google Apps, here's how we suggest you get started.
Contact Support
IT Help Desk Support 
Google Apps   Mail   Calendar   Contacts   Tasks  
1. Start emailing contacts

Find addresses when sending mail. Add contacts to your Contact Manager.

Email, find, and add your contacts 

2. Import your contacts

Import contacts from your old address book to Google Apps.

Import contacts to Google Apps

3. Organize your contacts

Create groups to organize contacts or use as personal mailing lists.

Create personal groups and mailing lists 

Not supported in GMAIL
 What is not migrated to GmailPublic Folders, Messages larger than 25MB, Rules, Signatures, Shared Mailboxes, Category definitions, Category assignments, etc. 
 What's not available in Gmail See features you might be used to in Outlook mail  that aren't in Gmail.
     Switching form Microsoft Outlook®: Gmail and Calendar

Self-paced training (short clips - 1 hour total) A comprehensive introduction to switching from Microsoft Outlook® to Google Apps. Covers threaded email conversations, contacts, labels, mail filters, calendar events, syncing events from Outlook, and more

More about contacts...