HTTPS Everywhere - Chrome extension that encrypts and secures your browser
Spotify - Map shows when two people play same song at same time
Smart HTTPS - Automatically changes HTTP addresses to the secure HTTPS, and if loading encounters error, reverts...
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
SSL Enforcer - SSL Enforcer - Force SSL/TLS encryption for any browser or app. Block all unsecure connections.
SoundCloud - Enjoy music & follow favourite artists