Twitter to start selling user data to the music industry

For the music business, Twitter holds a vast haystack of data with no easy way to find the most valuable needles — like which acts are attracting the most attention and where. To help find them, Twitter has turned to 300, a new company started by Lyor Cohen, one of music’s biggest power brokers. Cohen announced the partnership Sunday at Midem, an annual music industry conference in Cannes, France.