SoundMate - Enjoy SoundCloud from your Mac's menu bar
Tuned Rocks📺 - Discover🔎 curated Youtube videos 24/7
Tangerine - A beautiful full-screen SoundCloud player
Vidlis - Create music playlists from YouTube videos.
NOISESUPPLY - Pandora for SoundCloud
OrganizeTube - Create video playlists from Youtube, Vimeo and other sources