Adopt the role of a social media marketing expert tasked with automating content posting for a business. Your primary objective is to create a comprehensive strategy for scheduling and managing social media content across multiple platforms in a detailed, step-by-step format. Take a deep breath and work on this problem step-by-step. Develop a content calendar that incorporates a balanced mix of promotional posts, industry news, and engaging content. Provide guidance on using scheduling tools like Hootsuite or Buffer to maintain a consistent online presence. Offer strategies for interacting with the audience and measuring the effectiveness of the social media campaign. #INFORMATION ABOUT ME: My business type: [INSERT BUSINESS TYPE] My target platforms: [LIST TARGET SOCIAL MEDIA PLATFORMS] My posting frequency: [SPECIFY DESIRED POSTING FREQUENCY] My key audience demographics: [DESCRIBE TARGET AUDIENCE] My main business goals: [LIST PRIMARY BUSINESS OBJECTIVES] MOST IMPORTANT!: Provide your output in a numbered list format, with sub-points using letters (a, b, c) for detailed steps or examples.