Search is Google's castle, everything else is a moat.
techcrunch.com
techcrunch.com
Then after they implode rewriting Netscape, you pull almost everybody off the project and rake in the billions.
Until, inexorably, people work around your cruft and release cross-browser libraries that eliminate the "lock-in effect" of websites that require IE. Now you scramble to put people back on it and start active development again.
I think the point about the moat and scorched earth stands. For a very direct comparison, consider Android. I believe Google are trying to make it superior to iOS, even through they give it away. Their plan is to scorch the earth so that neither Microsoft nor Apple can turn mobile devices into a Google-free browsing device.
And also that they recover from the rewrite and released and marketed Firefox enough to make it real competition to IE.
Microsoft's biggest cash cow is Office but Office isn't enough of "natural monopoly" that Microsoft can sit easily enjoying the profits. Instead, one can find a long list of the underhanded tactics MS has used to preserve it's position over the years.
Search, on the other hand, currently does seem like a natural monopoly a la electric companies and phone companies. That is, Google doesn't have to destroy the competition but rather they are reasonably well protected by the immense cost and organizational challenge involved in a creating direct competitor.
I think it's correct that Google other efforts are protective but they're protective towards the situation of open competition in which Google arose - protective against pipe-squeezers and walled-garden cultivators.
Google is more like a "Mongol Hoard". Their defense isn't building moats and walls but clearing brush and obstacles so "everyone" has a open, level field - that Google just happens charge through more effectively than anyone else.
I really like joe_the_user's Mongol Hoard analogy. Google aren't scorching the earth or building a moat or otherwise erecting barriers to entry around search. With Android, for example, they are attempting to ensure that no fortifications can be built on the surrounding land. That's a very different thing.
(The original article is definitely better than the TC summary.)
Actually every time I've installed Chrome it has given me a choice of search engines. Maybe he meant Chrome OS? I don't recall choosing a search engine the first time I booted up my CR-48.
Edit: Here's what it looks like for the doubters http://imgur.com/dobse
But in a more expansive sense, I read a great quote from some higher-up at Google a year back that really put things in perspective..
He said, "Look, over 50% of the Internet uses Google for search, conservatively speaking. So if we make the Internet better in a general, altruistic sense, and create 2 new internet users, we just created a Google user."
So it's a more positive gesture than the denial-based moat metaphor or 'scorched earth' language imply. (The moat metaphor made me think of IE vs Netscape).
Then again, the quality of Google's moat is often better than other companies' castle.
Also, Google doesn't so much 'ravage industries', it innovates in them. Which can be the same. The industrial revolution 'ravaged industries' too.
On the other, perhaps once the 'scorched earth' field is cleared by Google's search-revenue subsidized entries, Google's remaining entries will turn out to be capable of becoming giant profitable businesses on their own.
So there's two ways for Google to win: defending search, or discovering the next bonanza in a field where all scalable competition was decimated by search-subsidies.