I was recently asked by someone how to do this. Considering the fact that there are pre-defined public folders in SBS, including those for contacts I thought it was worth sharing this with a wider audience. Set this up for a customer using SBS and they can easily share contacts across the whole business. Add the contacts folder to the favourties list and they are also cached offline :-) I found the answer by experimentation, but then this article describes it well too. The magic tab in Office 2007 (and 2003) is pictured below from my system. How to add Public Folder Contacts to the list of Address Books First thing you need to make sure that the public folders has a contact list created. Also, double check the permissions so that your users can view the contact list. To setup the Contact List in the Address Book navigate to your public folder and find the contact list you want to add. Right-click on the Contacts Folder and click properties . Click on the Outlook Address Book tab. Check the box next to “Show...