You should always research before picking a product on JVZoo. You must check the product's sales history. High sales often mean good demand. You need to review the product’s conversion rate. A high conversion rate indicates better chances of earning. You should look at the product's refund rate. A low refund rate means customers are satisfied. You must select a product that matches your audience’s needs. You can contact the seller for promotional materials. Good materials help you promote better. You should also check the commission rate offered. A higher rate gives better earnings. Careful selection will lead to success.