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In the age of content overload, newsletters have quietly become one of the most effective ways to stay informed, inspired, and ahead of the curve in business. Whether you're a founder navigating startup chaos, an executive focused on strategy, or an investor tracking macro trends, a well-curated inbox can be your most powerful daily briefing. Here’s a breakdown of some of the best business newsletters in 2025, organised by category, covering general business, strategy, startu