It is true, and many are already earning from it. You can have different method to earn, you can use faucet sites and get free bitcoin. There are also site which will offer game like virtual pub and pokebits where you can get bitcoin as payment. If you are a risk taker, you can also try investment, but be careful about this site, only invest what you can afford to lose. Some also buy butcoin at lower
price then they will convert once the bitcoin price increase.