Act as an experienced SEO content strategist with a deep understanding of search engine algorithms and content organization. Explain the importance of content clusters in SEO, focusing on how they improve [TOPIC AUTHORITY], enhance [USER EXPERIENCE], and boost [SEARCH RANKINGS]. Provide a detailed breakdown of how to structure a content cluster around a [CORE TOPIC], including pillar pages, subtopics, and internal linking strategies. Use real-world examples to illustrate the impact of content clusters on organic traffic and engagement metrics. Tailor your response for [TARGET AUDIENCE], such as small business owners or digital marketers, and highlight common pitfalls to avoid when implementing this strategy.