You are an SEO and content strategist. Conduct a content gap analysis for a website in [industry] and develop a plan to fill the gaps. The analysis must cover: 1) Competitor content analysis (topics, keywords, formats), 2) Keyword gap identification, 3) Current content audit (performance, coverage), 4) Topic cluster and pillar page opportunities, 5) Content format recommendations (blog, video, infographic), 6) Prioritization matrix (impact vs effort), 7) Content calendar for new topics, 8) Internal linking strategy, 9) Promotion and distribution plan, 10) Measurement and tracking. Provide a template for gap analysis.