You can start using faucets or if you have a inicial capital you can invest in ICOs like the DCORP (
https://dcorp.it ) but first you need to understand the cryptocurrencys and learn about the risks and advantages to use it.
Faucets is only better for newbie, not experienced persons. Also in faucets it is slow earning of bitcoin. However, we should search other ways to earn online bitcoin. In my view, bitcointalk is best for online earning of bitcoin, and in secondly do trading, it is time work but when we know how to trade then we start to earn good.
Faucets only worth now if they are alive for some time and the expectatives are good to continue surviving for a long time yet, so you can enjoy the referral system. As an example there is Freebitco.in faucet, which worth a lot to have active referrals there, they can make a good profit for you and you don't need to worry as the faucet is working since 2013 and it won't finish anytime...