The cost to mine bitcoins is based on how much they are worth. If bitcoins go up in value, more people will mine (because mining is profitable), thus difficulty will go up, thus the cost of mining will go up. The inverse happens if bitcoins go down in value. These effects balance out to cause mining to always cost the amount of bitcoins it produces.
Orignal From: How much does a bitcoin cost currently in usd?
YoBit lets you to claim FREE COINS from over 100 distinct crypto-currencies, you complete a captcha one time and claim as many as coins you can from the available offers.
回复删除After you make about 20-30 claims, you complete the captcha and resume claiming.
You can press claim as much as 50 times per one captcha.
The coins will held in your account, and you can exchange them to Bitcoins or Dollars.