Cryptocurrency mining sites consist of different mining websites that pay members through mining. It can either be a mining game or cloud mining.
Mining game as the name suggest is a kind of game in which members mine cryptocurrency without using their computer CPU of GPU. It is a simulation in which members takes the role of a miner. Members need internet connection to play these games.
Members are require to do simple jobs to get mining power such as solving captcha, watching advertisements or viewing short links. The number of mining power depends on how many jobs a members finishes.
Cloud mining websites gives members the oppurtunity to rent their hardware to mine crypticyrrencies. Members need to invest money to be able to get mining power. The number of mining power depends on how many a member is wollong to purchase.
Renting hardware using cloud mining websites consist of contracts. It will indicate the number of mining power and the duration on how long a member will have that mining power.