ChaChanged

ChaChanged is a web service focused on linking a consumer's older contact information with newer contact information.

People change their contact data: new phone numbers or email, they get married, move, etc. Not always is it possible to notify everyone of new contact info. Inevitably, there will be people who try to contact someone but can no longer reach them. ChaChanged *changes* this by providing a place for people to list their previous contact info alongside their new. Once listed, people can search by using the old data to find the current contact info. Getting listed is easy and free.