Media and advertising companies still use the same old demographics to understand audiences, but they’re becoming increasingly harder to track online, says media researcher Johanna Blakley. As social media outgrows traditional media, and women users outnumber men, Blakley explains what changes are in store for the future of media. (Recorded at TEDWomen, December 2010, in Washington, DC. Duration: 8:27)
Watch Johanna Blakley’s talk on TED.com where you can download it, rate it, comment on it and find other talks and performances from our archive of 800+ TEDTalks.