What helps you find content on the web by allowing you to choose categories and subcategories of topics?

Content discovery on the web is often facilitated by platforms like content aggregators and search engines that utilize categories and subcategories. These tools enable users to filter and refine their searches based on specific interests, making it easier to navigate vast amounts of information. Additionally, websites often implement tags and categorization systems to organize content, enhancing the user experience by allowing for more targeted exploration.