Markets are not necessarily based on money; they are about exchange. In the web search market, users exchange their attention for search results. I don’t know

Markets are not necessarily based on money; they are about exchange. In the web search market, users exchange their attention for search results. I don’t know whether this kind of market dominance factors into the legal determination of monopoly, but conceptually I think it makes sense to say that Google has a monopoly in the web search market.