Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Songlio - Free musical guessing game: race friends to name that tune
Turntable.fm - Turntable.fm is a social media website developed by Billy Chasen and Seth Goldstein that allows the audience to stream their own music.
SongTrivia2.io - Songtrivia2.io is a browser and mobile blind test game that allows you to play in real time with your friends or against strangers. Several musical themes, difficulty and game modes are available to create lots of different musical quizzes.
indiesound - indiesound is a multi-tasking platform developed for online music streaming, helping you to discover, listen and connect with thousands of indie bands or music artists all around the world.
Rock On! - A song pop adventure - music trivia awesomeness