What I'd say with Google is that I don't really think of Google as a .com era company because its massive success and hype wave came after the .com wave and crash had ended, and Google around 99/2000 wasn't a big hyped .com company...
In 99/2000 Google wasn't the massive success it was about 2 years later. And its IPO didn't happen until much later after the .com crash. It was known and popular among techies but wasn't the household name it became about 2002, 2003.
When I think of the .com crash (and I lived through it) I think of the companies that had IPOd or were about to, and took massive investment in 99. In 99 Google was still a small concern.
Amazon, yeah, I'd say Amazon is a late 90s company. Though they were just about books then.