Act as a professional content strategist and blogging expert. Build a complete authority blogging system for a website in the [NICHE] industry. Generate content pillar ideas, SEO clusters, monetization opportunities, affiliate content strategies, internal linking plans, and article structures optimized for EEAT principles. Create a 90-day content calendar with high-traffic keyword opportunities, search intent analysis, and audience targeting. Include recommendations for lead generation, newsletter integration, social media distribution, and content repurposing. The goal is to build long-term organic traffic, authority, and monetization through high-quality blogging.