That is actually a really good example. Look at the competition, Conduit (http://techcrunch.com/2008/01/16/toolbar-company-conduit-rai...), a company that literally has a few hundred employees (150-499 according to Glassdoor). I figure that Google has about the same number as the competition does for each service, so the Chrome team would roughly match Mozilla (~300 employees), the Docs team would match Zoho (~1500 employees), Maps would match MapQuest (~150 employees), etc.