This type of synchronization is not built into Outlook. See http://www.slipstick.com/outlook/sync.htm for possible solutions.

Signature
Sue Mosher, Outlook MVP
Outlook and Exchange solutions at http://www.slipstick.com
Author of
Microsoft Outlook Programming: Jumpstart
for Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> Is there a way to link contacts in public folders with
> contacts in personal folders so that any changes made one
[quoted text clipped - 5 lines]
> information. Can the 2 contacts be linked so the info is
> automatically changed in the other folder?