Waterpebble - Your little water saver
Playlist Machinery - Tools that help you create & organize your Spotify playlists
Apple - Available on iOS
Playmoss - Create playlists from YouTube, Vimeo and SoundCloud
Blocks - Empowering designers to build great websites without writing a line of code. For web and OS X.
podsync - Simple and free service that lets you listen to any YouTube or Vimeo channels, playlists or user videos in podcast format