The centralized nature of these oligopolies is a property of capitalism, i.e. capital consolidates power. You are saying that search, storage etc are centralised because of the tech? Why are they any more centralised than the other (pre-internet) examples I mentioned?

ahh, i was looking at those company's 'as tech'. In the sense of technology, not internet company's we see today.

To be honest I think we agree, we are just getting caught up in semantics. Whether it is capitalism or tech that's doing it is irrelevant because we have the development of technology in a capitalistic world order. In other words, it is impossible to differentiate when the two are so intertwined.