Good stuff. This author builds businesses off kind of serendipitous domain name purchases.

Find a domain, build something useful on it, grind for a while, you have a business. He also wrote:

I Sell Onions on the Internet [0] - He buys the vidaliaonions.com domain and works with local onion farmers to sell them. Has been linked at least a couple times on HN.

Want to build a side business? Just buy a great Domain Name [1] - I like this idea because it can give you a steady stream of ideas, puts some constraints on you, and you'll probably be a lot more committed if you plunk down a few hundred or thousand dollars for a domain!

[0]: https://www.deepsouthventures.com/i-sell-onions-on-the-inter...

[1]: https://www.deepsouthventures.com/build-a-side-business/