Sorry to be a pedant but Maps is not a 20% project, it was an acquisition of a company called Where 2 Technologies. Google Earth was also an acquisition (Keyhole).
My turn to be pedantic, I guess, but 80 and 443 are only two of many available ports. The internet is much bigger than just the web, even if lots of people never bother to look beyond their browser.
If you ever get to go to Geneva, swing by the CERN exhibit. There's the original fileserver, complete with 'This machine is a server. DO NOT POWER DOWN!!' scrawled on tape stuck over the power button. There's also his paper describing the WWW with the feedback of his manager written across the top: "vague but interesting...".
It's kind of comforting to know that my academic and computing experiences thus far are shared both across the globe and across decades.