This document discusses the use of social technologies (Web 2.0) in healthcare contexts. It outlines how consumers, clinicians, students, and others use tools like wikis, blogs, social networks and video sharing to collaborate on health issues. Examples are given of support communities and knowledge sharing between patients and providers. While social tools provide benefits of access and support, risks around privacy, security and misinformation must be managed. When used responsibly, these technologies can help empower patients and connect healthcare stakeholders.