1. Why social media? -- 2. Designing social media sites for emergency management : back to basics -- 3. Social sites for group support : Facebook -- 4. Twitter and microblogging : the basics -- 5. Design strategies : Twitter for teams and information exchange -- 6. Collaboration and document management -- 7. Visuals, mapping, and disaster management systems -- 8. Free and open source software : the building blocks of customization -- 8. Free and open source software : the building blocks of customization -- 9. Testing the system : knowing when to use or not use social media.