Users have experienced an issue where they are unable to add contacts or edit existing contacts in Apple's contact manager, Address Book. The issue appears to be primarily linked to changed ...

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 ...

Apple and app developers have not been transparent about storing your data. Feb. 15, 2012 -- Just how much of your iPhone's address book – your contacts' names, email addresses and phone numbers – is ...

Yahoo Mail adds contacts to your address book automatically when you email someone new. You can manually add new contacts to Yahoo Mail by using the "Add a new contact" feature at the bottom of the ...