Faucets are reward systems, in the form of a website or application, that offer one-hundredths of a millionth Crypto-Coins, for visitors to claim in exchange for completing tasks as they are offered. Rewards are distributed over several predetermined time intervals. The amount of the reward usually fluctuates according to the value of the criptomoeda.
Taps are a great way to help introduce new people to the crypto-currency market.
Mix Faucets provides information to beginners as well as offering them some free crypto-coins so they can "try it out before you buy", that is, put real money into it.
As this area is very new and even a little scary, people may still not trust their hard earned money in this. So this is a great way to promote digital currencies and attract new customers.