WHAT is Crypto-currency cloud mining or cloud hashing allows users to join existing mining pools or farms. They are able to make an aggregate mining with other users that they used this concept.
Cloud mining could help users to avoid the problems such as: buying machine, hosting, electricity consumption, soft installation, connectivity issues, extra payouts, annoying noise and more others.
Cloud mining is more advantageous for individual users because they will earn extra revenue avoiding the normally risks.
HOW to chose a cloud mining provider? There are several dimensions to evaluate such as: price, hash rate, power cost, lease time, support, net revenue, etc.
Those tables show the main parameters of cloud mining, and calculate the investment return time by current currency price and network difficulty.