Rachel Botsman: The case for collaborative consumption. Improv Everywhere: Gotta share! Johanna Blakley: Social media and the end of gender. Clay Shirky: How social media can make history. Jennifer Golbeck: The curly fry conundrum: Why social media “likes” say more than you might think. Rebecca MacKinnon: Let's take back the Internet! Bruno Torturra: Got a smartphone? Start broadcasting. Juan Enriquez: Your online life, permanent as a tattoo. Alessandro Acquisti: Why privacy matters. Brewster Kahle: A free digital library. Adam Ostrow: After your final status update. Kirk Citron: And now, the real news.
Dale Dougherty: We are makers. Stefana Broadbent: How the Internet enables intimacy. Clay Shirky: How the Internet will (one day) transform government. Close Help with subtitles Desktop / laptop users: please make sure you have the most updated versions of your browser and Flash player, and that Flash is enabled when you visit TED.com. iOS users: to access subtitles, start playing the video, then tap the speech bubble icon that appears in the bottom row of video controls.
Evan Williams: The voices of Twitter users.