BitStamp - Provide reliable and easy to use service for companies and individuals to exchange bitcoins.
Bulma - Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
Bitfinex - Bitfinex is the largest and most advanced crypto-currencies trading platform.
Milligram - A minimalist CSS framework
Mycelium Bitcoin Wallet - With the Mycelium Bitcoin Wallet you can send and receive Bitcoins using your mobile phone.
Material UI - A CSS Framework and a Set of React Components that Implement Google's Material Design