Better Notes - Simple notes app that ties notes together with #hashtags
Spotify - Map shows when two people play same song at same time
Whimsical - The visual workspace for teams.
SoundCloud - Enjoy music & follow favourite artists
Great F*cking Startup Advice - Strongly worded suggestions for startup founders
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