... which of course doesnt mean you should be using Google. I personally am a big fan of Google and use everything from them, but I recently read an interesting article about this and it basically said that for everything google does, there is an alternative - Gmail, maps (OK google earth is unique, but maps as such not), search engine, calendar, Gdrive... in some cases they are even much more used, eg. Facebook vs. Google+
There is only one exception - one service in which Google has absolutely no competitor and everyone uses it - YouTube...