SoundNode - SoundCloud desktop app (OS X, Windows, Linux)
Addoncrop - Extends the functionality of your web browser
Cumulus - A SoundCloud player that lives in your menubar.
Chrome Extension Downloader - Chrome Extension Downloader is the name of a website dedicated for downloading and Chrome extensions.
Sleeve - Your currently playing track displayed right on your desktop
Chrome Web Store - Chrome Web Store is an officially recognized application store being developed and managed by the Google.