As many have already pointed out the outage at Amazon Web Services & its impact have shown the extent of dependence (for internet services) on a small number of companies.
As in other markets (national & global) oligopoly is the defining characteristic of this market;
while effective monopolies are rare, oligopolies are so common that one might want to call the current period the 'age of Oligopolistic Capitalism'.
That this has significant social costs is pretty clear!
Reg
in reply to Emeritus Prof Christopher May • • •