[bvc35]

I think they have a monopoly on social media.

[colejohnson66]

Except they don’t? Twitter is pretty big too. Facebook is just the biggest player.

[nailer]

Twitter is an order of magnitude smaller than FB

[ucaetano]

And that's before you even get into the issue of defining the market (a necessary step for any analysis of monopoly power): what is social media?