If you give me a few billion dollars, I will build you a nice portfolio of services, too. What Google lacks is a large portfolio of services that actually make money. From a money making point of view, Google has Adwords.
Page 31
$2B per quarter from "other revenues", listed as "sales of digital content, apps and cloud offerings for enterprise, and sales of hardware".
$2B per quarter would be a huge business in any other context. It's just that ads is so spectacularly successful.
Other than Instagram and WhatsApp.
http://www.investopedia.com/articles/markets/030416/googles-...
That said, if they haven't diversified by the time the need for Google's search engine disappears, or if most people start to use the service without clicking on paid ads (e.g. because of adblockers), they will clearly have problems. "They're working on it" isn't the same as "they have it" when it comes to sources of revenue.