SoundNode - SoundCloud desktop app (OS X, Windows, Linux)
Headset - Personal music player for Youtube and Reddit
BeardedSpice - BeardedSpice is a menubar application for Mac OSX that allows you to control web based media...
Plexamp - A small music player with a number of unique features
Atavi - Your bookmarks are always close at hand!
Poolsuite™ - The super-summer music player