What are some alternatives?
Bitfinex - Bitfinex is the largest and most advanced crypto-currencies trading platform.
Honeygain - Time flies when you’re making sweet money. Simply download the app, turn it on, and earn!
Kraken - Kraken is a robust, ultra-fast image optimizer. Thanks to its vast array of optimization algorithms Kraken is a world ahead of other tools. Want to save bandwidth and improve your website's load times? Look no further and welcome to Kraken!
Donate Your Tab - Mine Crypto in your browser to help people in need
LocalBitcoins.com - LocalBitcoins.com is a person-to-person bitcoin trading site.
Argo Mining - Rentable cryptocurrency mining rigs by the minute