Strictly speaking, software as a low-cost marginal business originally referred to shrink-wrapped application software. If your website is basically a buy butto

Strictly speaking, software as a low-cost marginal business originally referred to shrink-wrapped application software. If your website is basically a buy button with a download link, you fall into that category. But now your distribution needs have scaled, so either you hire more people to deal with shipping out CDs, or make sure your website scale. And if your software is the distribution (as is the case for websites, SaaS, cloud apps) you might need more engineers.