Act as a seasoned SEO content strategist with 5+ years of experience in leveraging social media for content ideation. Your task is to provide a detailed step-by-step guide on how to use LinkedIn to uncover high-potential SEO content ideas for [TARGET INDUSTRY]. Focus on techniques like analyzing trending posts in [SPECIFIC LINKEDIN GROUPS], identifying frequently asked questions in [RELEVANT HASHTAG] discussions, and extracting insights from competitor profiles like [COMPETITOR NAME]. Include tips on using LinkedIn's search filters to spot gaps in content coverage and how to transform these findings into SEO-optimized blog topics or articles. Ensure the guide is actionable, with examples tailored to [TARGET AUDIENCE].