Replace Last.fm playlist tracks automatically on a 8Tracks playlist
Using a music recommender system called Audioscrobbler, Last.fm builds a detailed profile of each user's musical taste by recording details of the tracks the user listens to.
8tracks.com is a radio and social networking service revolving around the concept of streaming user-curated playlists consisting of at least 8 tracks.
Soundiiz is the most complete online tool to manage your music library between multiple services. It offers a simple way to import and export playlists and favorites tracks, artists, and albums.