MoneroMilk is a XMR mining pool. It has a 1.2% fee (of which 0.2% is donated to the Monero core dev team) and runs on a Prop distribution method. The payout is set at 0.35 XMR.
Solo.CKPool is a solo mining pool with a 1% fee for BTC. CKPool allows users to mine solo without downloading the blockchain or running a node, which means users get 99% of the full bitcoin block reward (12,5 BTC).
Obelisk is a wholly-owned subsidiary of Nebulous, Inc., the company behind the creation of Sia, a blockchain-based storage network that operates on top of a decentralized market.
The Obelisk company focuses on building mining equipment for the SiaCoin, a Blake2b-based cryptocurrency. So far, the company has released one ASIC miners dubbed Obelisk SC1.
HydroMiner est une société minière de crypto-monnaie utilisant de l'énergie verte tirée de centrales hydroélectriques dans la région alpine d'Europe. L'hydroélectricité est généralement considérée comme l'une des ressources énergétiques renouvelables les plus efficaces et les moins coûteuses. Il est respectueux de l'environnement, neutre en carbone et naturel.