At the 6-month time point, participants will be invited to designate the family member or friend most involved with management of their chronic physical illness and/or mood. If the patient consents, we will collect this person's contact information. We will mail identified family members an invitation to participate in a structured interview, with 2 copies of the consent form, along with a pre-paid return envelope. One reminder mailing will be sent 3 weeks after the first mailing. A research assistant will follow-up by telephone to schedule a 1 hour telephone interview with family members who return the consent form. We estimate that ~30 patients will provide their family member's contact information and that ~10 family members will consent to participate. As we are currently preparing the next phases of this research program, these structured interviews will allow researchers to explore the ways in which family members and friends could be a source of support for people using depression self-care tools. Consent forms and interview guides will be approved by the ethics committee.