Check it out these cool training videos about Office 365.
Create a public email alias: Learn about distribution groups and how to use Windows PowerShell to create a shared mailbox. Then add the shared mailbox to Outlook 2010 and Outlook Web App.
Create an internal team alias: Use a distribution group to make it easier to send email to a team of people in your organization. Using a team alias, you don’t have to type individual email addresses for the members of a particular group when you send email. You’ll learn how to create and use you team alias in both Outlook 2010 and Outlook Web App.
Share your Office 365 calendar: Learn how to share or publish your calendar in Outlook 2010 and Outlook Web App so that friends and colleagues can see your appointments and meetings. Control who can view the calendar and how much information they can see.
Contacts
Share your Office 365 contacts: Learn three ways you can share contacts with your coworkers in Office 365. You can share them using Outlook 2010, add contacts to the global address book for everyone to use, and take contacts from a SharePoint list and synch them with Outlook.