AOL used to be internet in the US, there was Minitel in France and i-mode in Japan. All of them were widely successful in their day but turned into obscurity when disrupted by more open and distributed solutions.
There’s a law which says something like “any institution always strives to become more powerful over time”. I can’t find the source of this law, but it applies to any organization – commercial or non-commercial. In their strive to become more dominant in a market or sector, they typically strive to centralization of power, influence, usage and product.