Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
Tempso - Finally a place for classical music online!
Pandora - Pandora Radio is a free (ad-supported) internet radio founded in 2000.
Concertmaster - Classical music front-end for Spotify
Deezer - Deezer is a music streaming app created in France. It is available in 180 counties and gets 16 million users a month. 6 million of the users have paid subscriptions. Read more about Deezer.
Classical Page - Email notifications for live classical music near you