Spotify - Map shows when two people play same song at same time
UI Playbook - The documented collection of UI components
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
Global Predictions PortfolioPilot - Intelligent portfolio management for self-directed investors
SoundCloud - Enjoy music & follow favourite artists
GrowthHackList - 100+ curated growth hacks for makers + early stage startups