On Faucet sites You can earn small amount of ETHEREUM ( Ethereum).
Faucets work this way: On their sites you must enter your ETHEREUM address to appropriate field, fill the captcha field or some other actions (like click antibot, roll roulette etc.). Then you receive small reward to your bitcoin micropayment wallet. After reaching certain amount of ETHEREUM, the money will be sent to Your real ETHEREUM wallets. After required time You can repeat this action. more