The dark web/deep web/dark net/whateveryouwannacallit has many legal things sold on it. My favorite story was a few years back, a vendor there was selling drugs. However, they also had their own coffee blend, and they would send a bag of their coffee with every purchase. Turns out the coffee was phenomenal. The vendor started getting so many requests to buy the coffee directly that they were able to just start selling coffee. I don't remember if that got them to stop selling their illegal merchandise, but at least they had one avenue of semi-ethical income.