Airbnb - Book unique places to stay and things to do.
Spotify - Map shows when two people play same song at same time
Sporteventus for iOS - The worldwide search engine for sporting events and tickets
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
Up All Night - Concerts and exclusive events for $25 a month
SoundCloud - Enjoy music & follow favourite artists