Yahoo recently added a new feature to Yahoo! Contacts that will let you maintain an address book that updates automatically! Named "Share My Info", the new feature will help you stay in touch better by sharing your contact info with your friends or co-workers. The ‘auto-updating’ address book will always provide you up-to-date contact information for the people who matter most to you.
How to use this feature? Go to Yahoo! Contacts and click on the Share my info link under the Popular Tools. You will notice all the contact information that Yahoo! has for you. Check that everything is correct and press the ‘Start Sharing’ button. With this, you contact information will be shared with all your Yahoo! Connections. Your friends (or connections) will receive a Yahoo! Update. When they will find you in their Yahoo! Contacts list, they will always see the up-to-dated contact information. It is done automatically. You will have full control over what to share and with whom to share. Just use the edit button.
So, what you think? Is it a useful feature? Give it a try and start sharing your contact info today.