"One thing to watch out for with Google docs is file owners. When somebody leaves you must make sure they transfer all their ownership first. If you are using apps for business a year after they leave Google will delete all the files they own. We mostly use Confluence for our docs as when you are in a rush trying to fix something then digging into puppet code can be too slow. We also do static dumps of the site for backup. We quite often develop larger documents in Google but then transfer them to other places for storage." - John Cooper