Public goods are non-excludable (impossible to prevent anyone from using the good) and non-rivalrous (one person's use doesn't diminish the availability for others). Google doesn't match the criteria.
You've cherrypicked the phrase "public good" and applied an out of context definition that doesn't fit. The thing being discussed was public utilities. Those are a sort of public good in the same sense that public parks, public libraries, and free education are all public goods.
The local electric utility isn't "non-excludable" (unless you ignore criminal law) but it is certainly a public utility, a natural monopoly, and public good by most metrics. The vast majority of jurisdictions regulate it accordingly.
As a consumer, I agree with the parent comment and disagree with your comment. Google is closer to a public utility than any other tech company and most of their valuable services, we get to use for free and it benefits our whole family and probably the families of every home from here to the west, north, south and east of us, mostly all for FREE.
Interesting definition. This applies to almost literally nothing except Jefferson’s candle and IP. Actual literal fire is considered worthless and IP is bazillions of dollars of closely guarded secrets. Public transits, seemingly unlimited water sources, or neighborhood parks all suffer from overcrowding so this diminishing availability thing is tough to meet
It is the actual definition since economist Paul Samuelson coined it in 1954.
Things like public parks and public pools would be classic examples of a "Common resource." Rival and non-excludable.
Classic examples of true public goods would be public radio broadcasting or national defense.
At some point in the past couple decades, people have come to misunderstand the term. Having heard the argument that public goods justify taxation to fund them, they come to believe that anything they like must be a public good.
