Spotify - Map shows when two people play same song at same time
ReadBit - Read wisely & save time with text-to-speech audiobook reader
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
Listening.io - Turn articles into audio and listen in your podcast app
SoundCloud - Enjoy music & follow favourite artists
article2audio - The next generation of text-to-speech focused on web content. It understands and enhances English articles and blog posts beyond just words.