Last summer, as I sat on a crowded train bound for Berlin, the rhythmic clatter of wheels on tracks accompanied my thoughts of starting my own venture. I could feel the tension building; the more I thought about the risks involved, the more I realized I needed a solid understanding of business fundamentals. It struck me then that in our age of digital learning, the right online course could turn that anxiety into actionable knowledge. The question became: which courses are actually worth my time and investment?