Slackbox - Spotify playlist collaboration through Slack
Podcast Playlist Creator - Create a shareable podcast playlist with an RSS feed 🎧
Playlist Machinery - Tools that help you create & organize your Spotify playlists
BestPodcasts - The best podcasts, curated and searchable
PlaylistMap - Connect with Spotify playlist curators from around the world
Podcast Gift - A curation of the best podcasts in business, design and tech