If you really want to be scared, read this http://www.computerworld.com/action/article.do?command=printArticleBasic&taxonomyName=Networking+and+Internet&articleId=337791&taxonomyId=16
And that’s the good scenario. What happens if Google has a major fault or is cyberattacked and you can no longer search, see maps, edit Google docs, send Gmail…..?
Keep taking the tranquilizers..