The document discusses challenges in health social networks and the need to better understand "ePatients". It proposes evaluating ePatients' characteristics like education, age, skills, and expectations to develop a typology. An approach is outlined using surveys, focus groups, and validated scales to assess eHealth literacy and patient activation. Combining these could identify ideal, digital citizen, analog, and risk ePatient types to help engage the right users with the right social media tools. The goal is personalized ePatient interventions for personalized medicine.