In return, it’s possible to get paid in cash, gift cards (think Australian supermarkets or Amazon) or even goods. Companies will use this data to improve products and services. Opportunities are presented to you, based on your behavior or buying patterns. With paid surveys, the concept is simple: Legitimate market research companies invite you to answer questions and give an opinion on products or services. We recommend you sign-up for multiple Australian paid survey sites in one go for the best chance to earn more cash and rewards. TIP: These legitimate sites are free to join.