Addmefast - Building a website or network on Internet is no longer a hard task but promoting and marketing it is still a difficult task but not impossible.

Magic Playlist - Get the playlist of your dreams based on a song

YouLikeHits - YouLikeHits is an online service that brings results within seconds.

Spotalike - Spotify playlist with similar songs, according to Last.fm

Linkcollider - Link Collider is a web-based service that is designed to grow your online business, social media networks, and personal blogs.

Playlist Machinery - Tools that help you create & organize your Spotify playlists