Freedom and Censorship on the Web

From TED Global in Edinburgh. Interesting stuff , especially in light of the News International hacking scandal here in the UK. What role do corporations, especially those who own media or platforms, have in censoring the content we have access to online?

She raises some interesting questions around the differences between attempts to control within national as opposed to personal boundaries. i.e. media was once largely a national issue but the internet effectively dismantles national boundaries (except when it is barred/hacked/censored by national governments).