I'm surprised I wasn't able to find much at all on this by searching this forum or the web. Maybe I'm looking for the wrong thing. Anyway, here goes: I want to share an Address Book between different user accounts on the same Mac, without resorting to using MobileMe or another sync tool that requires internet access to function. I had hoped to set it up where the Address Book is in the Shared folder and accessed by each user, but that doesn't appear to be possible. It's surprising that this isn't a natural function in native Mac OS X. I've also tried exporting an Address Book Archive to the Shared folder. It shows on my account to be 1.6MB. When I log in as another user, it shows to be Zero KB, even after changing permissions, and importing into Address Book does nothing. Any ideas?