You can manually add new contacts to Yahoo Mail by using the "Add a new contact" feature in the Contacts tab or hovering over ...

To delete contacts from Outlook, you will need to open your address book and select the entries you want to remove before ...

I am wondering how people manage their address books. It's been a huge pain for me for years. I've hit on this: I sync email and calendars to my personal and work Gmail accounts, via Exchange on the ...