Third party data is defined as data that marketers get from outside sources. Third party data can come from a wide variety of sources. Third party data is often gained from internet interactions. It is information that is collected by marketers because it can improve their overall marketing success. Third party data is often used to create segments for consumers for targeting and marketing messages. The information marketer?s gain from third party data is vital in creating a successful marketing strategy. Third party data providers often ask for a fee for the information that they provide to marketers. It is a very popular source of marketing.