Here is a listing of bit miners that all have free starting bases. If you want to increase your miners power you can purchase more/higher hash rates to get even more coins in less amount of time. We will continue to review this list to ensure the accuracy and the legitimacy of each of the miners.

Cloud mining enable users to purchase hashing power from hardware in real data centers, without managing hardware, software, electricity or other issues to mine bitcoins. With cloud mining, these sites will work to deploy and run Bitcoin miners under professional operation and maintenance. Most claim they will help you achieve the best ROI secured by lower power consumption, electricity cost, and higher mining yields. You can start mining Bitcoin immediately. It will save you all the trouble and nuisance to run a miner on your own, and bring to you more yields instead.

Overall these will help you cut out the time, energy, and higher initial cost than an actual mining rig will.