Some months ago the worth of 1 ETH was equal to 1,22 $ , today 18,22 $ . Nowadays the ether is the most used cryptocurrency after bitcoins , it's the gas of ethereum network that allows to users to run "smart contracts" . Smart contracts are the future of Iot (internet of things ) and blockchain technology oriented to human contracts , for more info www.ethereum.org .
If you want beginning to earn ETH for free see here : http://free-ethereum.com/signupin/134371 , minimum 0.001 ETH every hour .
