Get referral fees from Shutterstock
You don't even need to have photographs to make money at Shutterstock. If you sign up for an account, you can refer photographers and stock photo buyers and get a referral fee for each sale. Each time a photographer that you referred makes a sale, you collect $0.03 and when you refer a buyer, you get 20% of the sale (which could be $30-$50 or more).