Providing supplemental contact information corresponding to a referenced individual

Providing supplemental information for an individual referenced in an electronic message typically includes receiving an electronic message, examining the electronic message, detecting an identifier for a referenced individual contained in the electronic message, and making supplemental information for the referenced individual available to a recipient of the electronic message. The supplemental information may include information that is in addition to information contained in the electronic message. The supplemental information may include at least one of an e-mail address, a screen name, a telephone number, a facsimile number, and a mailing address, each of which is associated with the referenced individual.