U.S. growth in Spotify continues to accelerate, with the service now topping 250,000 paying users -- up from 70,000 in the early days following the launch in July. The music streaming service, which boasts a worldwide subscriber base of over two million, offers paid users no ads and unlimited streaming of music from its library of millions of songs. Spotify's recent U.S. growth has been fuelled in part by a recent integration with Facebook.
