3 Reasons Your Mining Bitcoin Is Broken (And How to Fix It)
https://speedy-wiki.win/index.php/10_Fundamentals_About_Mining_Bitcoin_You_Didn't_Learn_in_School
Want to know how you can purchase bitcoins? A lot of people are asking this issue these days, and the answer is much simpler than you imagine. You don't even need to be aware of anyone else's credit card account