[bsder]

> Nor Google. Definitely not Facebook.

While I agree with you on Twitter, these two are less clear.

Google wields vast influence by being search provider, advertising provider, email provider and phone provider simultaneously. Google IS the panopticon for the average user.

Facebook is someone I can't avoid in quite a lot of situations. When government starts using Facebook to coordinate and contact (and it has), Facebook has become more than a mere company.