1. A computer-implemented method of acquiring social information about a called party comprising: initiating a telephone call to a called number associated to the called party; including a request for the social information in call information sent to the called number; receiving an identity of each of one or more social information repositories associated to the called party in a call response sent on behalf of the called party; when an identity of more than one social information repository is received, selecting one of said social information repositories based on information available to a calling party; sending an access request to the selected one of said social information repositories; and receiving social information sent on behalf of the called party.