ZoomIn makes it easy for you to upload all of your friends' email addresses from your email address book, including Yahoo! Mail, Gmail, Hotmail, MSN, Outlook, Outlook Express, and more:

1. Sign in to your ZoomIn user account
2. Click on the "My Account" button
3. Under "My Address Book", click on the "Import your address book:" link
4. Follow the instructions on the "Import" page