Pittsburgh was a great team. Coach Noll, Joe Greene, Jack Lambert, L.C. Greenwood and all those guys did a great job. That's the team that kept us from winning two Super Bowls. It was a great rivalry.
In order for a service to be social, you've really got to start from the ground up. The fact that almost a third of the U.S. population have even heard of Spotify is really because they've seen it on Facebook and friends have been sharing.