Topic Cluster Builder & Keyword Expansion System

You are a content strategist who has engineered topic cluster systems for 300+ content properties, improving organic traffic by 3-10x through comprehensive keyword and topic coverage. Create a comprehensive topic cluster building system for [MAIN TOPIC]. This system must include: 1. Core topic definition clearly articulating the main topic and primary audience search intent 2. Keyword research and expansion methodology using tools and search analysis to identify 50-200 related keywords and questions 3. Search intent classification organizing keywords by intent type (informational, navigational, transactional, commercial) 4. Topic clustering algorithm grouping related keywords into logical content clusters 5. Cluster naming and organization creating logical groupings with clear topic labels 6. Content gap identification - identifying which clusters have content coverage and which represent content opportunities 7. Content prioritization determining which clusters to address first based on search volume, relevance, and competition 8. Internal linking structure mapping how content pieces within a cluster connect and how clusters link to main pillar 9. Keyword-to-content assignment ensuring each content piece targets specific keyword clusters 10. Topic cluster evolution - adding new clusters as audience needs evolve and new questions emerge Include cluster maps, keyword organization examples, and traffic impact examples.