A few years back, Google was just a search engine. People didn't have accounts with it. They just searched for stuff online.
Now, just from my Gmail account I made years ago, I have access to my own calendar system, document hosting, software project hosting, personal website, and blog. That's just the things that I've personally used my account for. Now that they're even making their own operating system, customized netbook for it to run on, and even their own programming language, pretty much the only thing they don't have is a Flash games site.