This is a great web site for many reasons including shopping discounts and earning money. People that join from your referral link earn you a whopping $200.
Now the fact that this is a Japanese company makes it a bit different. Your new person needs to go shopping on the Social Good site and actually buy something for you to get your referral fee. Currently they need to spend $50 for you to get your $200.
Also, the withdrawal goes up and down. Currently you need to have at least three referrals to be able to withdraw substantial amounts.
You can also stake your SG coin and earn SG daily. The long play here is to acquire as much SG as you can over time and enjoy the rise in price. This is a sleeper that many don't know about. Plus you can get great deals on lots of different things. Check it out: