Objective: Most patients want their family involved in consultations and decisions, however some family caregivers report feeling overwhelmed and unsure of their role. As caregivers are increasingly looking to medical websites for guidance, this study aimed to review reputable web-resources available to inform family caregivers on how to be involved in medical consultations and decisions. Methods: Google searches were performed using lay search strings, to imitate how a cancer caregiver may locate information. Relevant webpages were included if they were directed at caregivers and from a reputable health organisation. Qualitative content analyses were performed on the included webpages. Results: 22 webpages were included and 8 were directed at caregivers of cancer patients. Six key categories of information were identified: preparing for consultations, helping during consultations, advocating for the patient, decision-making, communicating in hospital settings, and communicating with family and friends. Conclusion: A range of online resources were found to guide family caregivers, particularly cancer caregivers, on involvement in consultations. However, few provided information to caregivers on complex situations such as treatment decision-making, advocating for patient's needs, and communicating in a hospital setting. Practice Implications: Clinicians can actively refer family caregivers to online resources that support caregiver communication in medical settings.