A personalization management system is a technology that helps websites, apps, and other online services remember what you like. It does this by tracking information about you, such as the pages you view, the videos you watch, even what you type into search boxes. With this information, the personalization system can serve you up different custom experiences. For example, if you are looking at a website about shoes, the personalization system might remember this and display a new page with similar shoe styles when you visit again. This way, the website can give a more personalized experience to you specifically, so it's easier to find what you're looking for.