The document summarizes a presentation by Sophie Jones from Cancer Research UK about using social media for campaigning. It discusses Cancer Research UK's campaigns to increase access to radiotherapy treatments and reduce tobacco use. It provides tips for effective social media campaigning, such as empowering supporters to advocate on issues, going where audiences are online, building communities to support causes, and integrating online and offline support. Challenges mentioned include time, resource constraints, maintaining control of messaging, and "slacktivism".