What are some alternatives?
When comparing 8tracks and MixCloud, you can also consider the following products
Serendipity by Spotify - Map shows when two people play same song at same time
SoundCloud - Enjoy music & follow favourite artists
Pandora - Pandora Radio is a free (ad-supported) internet radio founded in 2000.
Radio4000 - Radio4000 lets you discover user curated radios from around the world, manage your online music...
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
Google Play Music - Free radio for everything you do. Store 50,000 tracks from your personal collection. Subscribe for on-demand access to 40 million songs and offline listening.