Amazon has 50% of all e-commerce spend in the US.
Netflix put Blockbuster and every other movie rental store out of business. It currently has 50% of all video streaming traffic in the US.
Google has 80% of the search market.
I'm not so sure about what Apple monopolizes, but they do have a duopoly in the app store space with Google.
Wrong way to think about this. If you talk about advertising monopoly, sure. But you'd be hard-pressed to make an argument on a monopoly of free products.
> Netflix put Blockbuster and every other movie rental store out of business.
That's because Blockbuster was, quite frankly, shit. They failed to adapt to the internet. So what? Times move on. Netflix is far far better for consumers.
Something isn't a monopoly just because it's popular.
If you're a state missing out on tax because the options that provide it to you are unpopular it sure is.
This isn't a discussion about consumers.
So 50% == all?