Reader Andrew Jacobs is interested in making big changes to contacts in Address Book. He writes: Recently, a large company I do business with moved its headquarters and I’d like to change the address ...

Address Book includes a useful feature that you may not be aware of, as it’s not really fully enabled by default. The feature is the ability to store a URL with a contact—you can see this on the Apple ...

Recently, Facebook changed everyone's email to an @facebook.com address. Even if you fixed the problem, you may find that Facebook changed all of the contacts in your phone, too. Here's how to fix it.