Grouping customers on social media makes targeted marketing and listening to feedback easier. It allows businesses to focus on smaller groups with common interests. Brand ambassadors are paid to represent brands in a positive light and spread the brand through their own social networks. Influencers are individuals with large social media followings who may choose to promote brands but are not officially tied to any company. They are harder to manage than brand ambassadors since they can voice any opinion. The key difference is that brand ambassadors are paid to maintain a brand's image while influencers have more independence in what they say.