Spotify Play Button adds music to a website.
http://developer.spotify.com/technologies/spotify-play-button/
Audio / Video Media
Get access to data on 99,827 websites Spotify Play Button Customers. We know of 12,228 live websites using Spotify Play Button and an additional 87,599 sites that used Spotify Play Button historically and 8,030 websites in the United States.
Get a list of 99,827 websites using Spotify Play Button which includes location information, hosting data, contact details, 12,228 currently live websites and an additional 13,460 domains that redirect to sites in this list. 87,599 sites that used this technology previouslyand 8,030 websites in the United States currently using Spotify Play Button.
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