Pandora - Pandora Radio is a free (ad-supported) internet radio founded in 2000.
music2pc - music2pc is a free program to find and download MP3 songs from the Internet.
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
MP3base - MP3box - free mp3 search and download, stream music online for free, play tons of artists, albums and songs without registration.
TIDAL - Tidal is a streaming music service supported by some of the most influential artists working in the industry.
Lidarr - Lidarr is a music collection manager for downloading and organizing music libraries.