I was surprised by that part too. I always assumed that Craig was a young techy person.

My takeaway from this article:

- Craiglist was launched by a 40-year old, ex-IBM enginner. It started out as an online list for his circle of friends.

- The main competitor then was "Classifieds" section in newspapers. Craigslist out-competed them by simply being a better medium (No word-count limit + photo support).

- Meanwhile, newspaper executives failed to respond in a meaning manner. By 2010, 70% of their classified ad business was gone.

Craig seems to be fully retired by now, focusing on his philanthropy work, which I think is awesome.