Initially coin faucets were created in order to spread the adoption of Bitcoin around the Internet. The original Bitcoin faucet was made by then Bitcoin Core developer Gavin Andresen and, believe it or not, it used to dispense 5 whole Bitcoins to each user. Since then faucets have become more business oriented. Today, faucets are sites that dispense a small free crypto currency and Bitcoin to users every few minutes while making money from displaying ads to these users. As long as the site owner is making more money from ads than what he’s giving out to his users, he remains profitable.