As much as people like to consider Google revenu sources very diverse or dream about future of other Google bets, Google is mostly an advertisement company heavily relying on their search business. It's obvious that Facebook has a better position for growth and adding new channels for their ads business. I can see Facebook share of online advertising grow in the next couple of years.
In the Google vs. Facebook discussion, I think people seem to forget a tiny detail: Google has some products that are market leaders with heavy usage, eg: * Search * GMail * Youtube * Android * Chrome * Maps * Docs Its just that Google is unable to monetize many of them. However, Facebook has only Facebook, Instagram and Whatsapp. 1) Instagram _is_ what Facebook was 10 years ago. Its not a new product. They just boug…
For example, there have been talk about how search has shown promise in early cancer diagnosis [0].
So as you say, while Google are currently only monetizing their ad platform at the moment, they are far better positioned than Facebook to quickly find new revenue streams, should they need to.
Additionally, if you should believe that AI is going to be a huge area for monetization in the near future, then Google are very much well positioned to be a leader there - it is no coincidence that a "search" company is able to make self-driving cars or Alpha Go...
[0] http://www.nytimes.com/2016/06/08/technology/online-searches...