Owning a business today is not what it used to be. On the one hand, there’s more competition. On the other, democratized access to technology has lowered the barrier to entry. However, at its core, the principles are still the same—keep your costs low and your profits healthy, grow sustainably, and reinvest in your business. The difference between twenty years ago and today is that today, you have a sophisticated tool in your arsenal—digital marketing. So, what exactly is digital marketing?