I came across this site where people can roll the dice, earn free bitcoins and also multiply them. How legit are these sites and how to use them effectively?
Bitcoin faucets are legit websites. But of course among the legit there are also non-paying sites. But since there are no fees faucets are a good experience for beginners in bitcoin. The source of payment that are give by this faucets are coming from the advertisement ( banner ads) that are posted on their website. So if there are no traffic there are no income. If there are no income there are no payouts for faucet users.