Social media and pressure groups regulating press?

Time permitting, I'll expand on this - its a topic I've raised before with the Lord Prescott example - but there is a case to be made that Twitter in particular, but also campaigns like No More Page Three, are more effective regulators of the press than IPSO (let alone its rivals!).
I wonder how The Sun will respond to its editor being awarded sexist of the year...
Read more here.

https://twitter.com/NoMorePage3