Managing your contacts could be a very tough job. People uses address diary, digital diaries, mobile phones, outlook express address book, Microsoft outlook contacts, yahoo, hotmail, gmail address etc to manage their contact information.
People have to keep updating their contact information. Some time they update mobile address book, some time yahoo address book and some time digital diary or paper address diary. The toughest job is to maintain all your address books in sync.
This step-by-step article describes how to maintain all your contacts and contact storing application updated and in sync. This document is based on the practice I have followed in last couple of years.