Blogging can be an effective way to position yourself as a subject matter expert, build communities around specific topics, and market professional services if done strategically. While blogging takes significant effort, it provides benefits like communicating directly with clients and prospects, educating non-customers to attract new business, and improving search engine optimization. To blog effectively, focus on a niche topic, say something worth reading through original and specific content, promote posts across other social media platforms, and use tags and images to optimize each blog for sharing and discovery online.