FBX, or Facebook Exchange, continues to be a powerful tool in the world of online advertising and digital marketing in 2021. This real-time bidding system allows advertisers to retarget users who have visited their website or interacted with their app, presenting relevant ads to these potential customers as they navigate through Facebook. With the wealth of user data available, advertisers can create highly targeted campaigns to reach the right audience at the right time. FBX offers a cost-effective way to engage with users who have already shown an interest in a brand, product, or service, making it an essential component of any comprehensive online advertising strategy. As the digital landscape continues to evolve, FBX remains a valuable asset for marketers looking to drive conversions and maximize their advertising ROI.