Ebates, now known as Rakuten, has been a leader in online cash back services since 1999. It has paid its members over $3.6 billion in cash back, allowing users to earn money back on their purchases from over 3,500 stores. Members can join for an extra 10% cash back boost on purchases made within their first week of signing up. The platform offers a wide variety of stores, making it a convenient tool for savvy shoppers looking to maximize their savings.