Earlier this year, Daniel Ek, the CEO of the music service Spotify, was in a car with Mark Zuckerberg. Ek was visiting the Facebook founder in California while the two companies were working together on what eventually would be part of the massive announcement made by Zuckerberg today at his company’s F8 developer’s conference. It’s an initiative that will unleash new waves of applications on Facebook that will greatly enhance the power of the service — already a major part of people’s lives — by adding a limitless stream of lifestyle data that people can use to share and, ultimately, define themselves with a profile built on a stunning amount of personal information.
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