That company moved to a new location and now you need to update the address in your contacts for everyone you know there. Address Book doesn't allow for bulk-editing, but Macworld runs down how you can get the job done without doing it one by one.
Since Address Book doesn't allow for multiple entry editing natively, this is an export, edit, and re-import exercise. Still, nice to know it's possible. Bulk edit Address Book data [Macworld]
