Printmaking, font design, laser printer → inkjet printer, Epson printer → PDF → HTML → web browser.

Rent for an apartment in San Francisco is around $6000 today, while it was $1000 in Toronto last year. How did San Francisco's housing crisis affect your ability to make money off your old junk?

Craig Newmark was looking for an apartment in San Francisco. Being such a competitive market, Craig needed a tool. He created a mailing list of apartments for rent. After a few years he converted it to a webpage and called it Craigslist. To this day he lets people sell and buy junk for free, and only charges for real estate ads.

Lotus 1-2-3 → Office

Usenet → invention of domain names → rent extraction scheme that's 404'd half the net.

Mailing lists → website

mcdonalds.com → dropcatch

eastbay → ebay

DNS, IRC → anonymous, JPB

One could argue that the net came about primarily as a way to share photos.

Laser printing became popular. Because of the increase in printing ability, printing became faster and more accessible. People wanted to share images faster. New tools needed to be made to deal with this demand, and one of them was HTML — a computer language designed to print documents. So people chose to share images on the web using HTML.