Sponsored content can be a one-time deal or an ongoing partnership with a brand. 3. Product placement: Some brands may send bloggers free products in exchange for a review. While bloggers do not receive monetary compensation for these reviews, they get to keep the product and may receive other perks like exclusive discounts or access to events. 4. Ad revenue: Bloggers can also earn money from product reviews through advertising revenue. By displaying display ads on their blog, bloggers can generate income based on the number of impressions or clicks the ads receive. Some ad networks that bloggers use include Google AdSense, Media.net, and Amazon Native Shopping Ads.