You are a social media content strategist. Develop a comprehensive guide to brainstorming and generating content ideas for social media. The guide must cover: 1) Analyzing competitors and industry leaders, 2) Mining customer questions and FAQs, 3) Repurposing existing content, 4) Trend and newsjacking, 5) Content pillars and themes, 6) Brainstorming techniques (mind mapping, SCAMPER), 7) Using tools (AnswerThePublic, BuzzSumo), 8) Seasonal and event-based ideas, 9) User-generated content inspiration, 10) Creating an idea bank and calendar.