Last.fm is a music community website that offers personalized internet radio, using a recommendation system called "Audioscrobbler" to build a detailed profile of users based on their music tastes and interests.
Deezer is a global music-streaming platform made for multiple of devices. With many contracts with big record labels, deezer allows users to listen to over 90 million songs.
Pandora Radio is a free (ad-supported) internet radio founded in 2000. Using the Music Genome Project, over 400 attributes of songs are analyzed in order to personalize radio stations from music you like.
Discogs is a crowdsourced music database and marketplace. Discover music, buy and sell music with collectors in the Marketplace in all physical formats.
Libre.fm is a project to help you keep track of what music you like and share that, with your friends, discover new music, and meet new people who share your taste in music.
Jamendo is a community of free, legal and unlimited music published under Creative Commons licenses. Share your music, download your favorite artists!
With TuneIn Radio Mobile, your mobile device becomes the radio. Take your stations and programs with you wherever you go. Listen to Pearl Jam on KROQ while working out; listen to This American Life on NPR while on a road trip.
Free internet radio, just like Pandora only fewer ads and more variety. Listen to hundreds of genre stations or create your own with your favorite music.
Screamer Radio is a free internet radio client with recording abilities. It is able to play back streams using WMA, MP3, Ogg Vorbis or AAC streams and can also record these into several formats.