Would young consumers pay for an ad-free YouTube? The site is going to find out. Next week, YouTube is launching Music Key, a subscription service that provides ad-free music and music videos starting at $7.99 a month. YouTube is the largest streaming service in the world, and this service could increase music listening on the site. To start, the service will be invite only targeting heavy music listeners—and yes, Taylor Swift’s album will be available. (The Verge)