What are some alternatives?
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
BeardedSpice - BeardedSpice is a menubar application for Mac OSX that allows you to control web based media...
Pocket - When you find something you want to view later, put it in Pocket.
SoundCleod - SoundCleod is a Mac OS X application which brings SoundCloud to the desktop without using a browser.
Diigo - Diigo is a powerful research tool and a knowledge-sharing community
Cumulus - A SoundCloud player that lives in your menubar.