SoundNode - SoundCloud desktop app (OS X, Windows, Linux)
Pocket - When you find something you want to view later, put it in Pocket.
BeardedSpice - BeardedSpice is a menubar application for Mac OSX that allows you to control web based media...
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Atavi - Your bookmarks are always close at hand!
Diigo - Diigo is a powerful research tool and a knowledge-sharing community