Streaming music aggregator Bop.fm has four more integrations to announce this week: Pandora, Xbox Music, Rhapsody and Napster. Users of those services can now connect their accounts to Bop.fm, which pitches itself as a “Switzerland of digital music” for people to share songs and playlists, regardless of what service they use. The four new integrations join Spotify, Deezer, Beats Music, Rdio, SoundCloud, YouTube, iTunes, Amazon and Google Play on Bop.fm’s roster. The company also says that more than 50m songs have been played through its service since its launch in December 2013. A big number, although important perspective comes with the knowledge that in a single week in July, Spotify’s top 50 tracks in the US alone were streamed 62.1m times (Bulletin, 20-Aug-14). Bop.fm is still relatively small in the scheme of things, then. Still, the service says it’s catching on with artists and labels, from Linkin Park and Keith Urban to Imagine Dragons and Wiz Khalifa.