Stakeunited is a stake pooling site that you join and add to the different alt coin pools to gain more staking power. I started a week ago and have already gotten 23869.20 free BUZZ coins, 1338.24 free xGOx coins, some free HOLD coins and KB3 coins. You can withdraw whenever you want to with your NEW, FREE coins. Here is my referral link and proof of free coins
https://stakeunited.com/newbonus
The concept is that you join stakeunited then go to different exchanges and purchase 1 of the 10 different altcoins that their program accepts. You then deposit those coins and just wait. It takes a few hours to a few days to start receiving free coins. You can withdraw all of your coins whenever you want to. This is an easy way to mine altcoins without having a large amount of it.