You can grant others the permission to view or update your calendar.

In Outlook 2003, click on the Calendar button. Next, click on the Share My Calendar link.

Click on the Permissions tab.

Click on Add. Add the person that you want to grant permissions to and click OK.

Now select the person that you added and set the desired permissions.

Click OK.

To view someone else's calendar, they must first share it with you. To access their calendar, click on the Calendar button. Next, click on the Open a Shared Calendar link..

Type in the user's name and choose Calendar (only in Outlook Xp) as the Folder. (This will only work if the user has given you permissions).