Discover one of our 28 local entrepreneurial communities »
Be the first to know as we launch in new countries and markets around the globe.
Interested in bringing MIT Technology Review to your local market?
Unsupported browser: Your browser does not meet modern web standards. See how it scores »
Users can share information, but the network only sees encrypted data.
Making more user information public has both privacy and security dangers, experts warn.
Companies face challenges mining social ties.
Facebook and Mozilla have contrasting visions for the future of your online identity.
Microsoft’s Danah Boyd on social networking.