"As corporate rather than government actors, the Deciders aren’t formally bound by the First Amendment."

"But to protect the best qualities of the Internet, they need to summon the First Amendment principle that the only speech that can be banned is that which threatens to provoke imminent violence, an ideal articulated by Justice Louis Brandeis in 1927. It’s time, in other words, for some American free-speech imperialism if the Web is to remain open and free in twenty-first century."

This is a big subject for me, something I've argued with Bob Wright about, notably in this March 2011 post: "The Bob Wright/Ann Althouse email exchange about what free speech means in the context of saying Roger Ailes needs to kick Glenn Beck off Fox News."

ADDED: Here's a clip from March 2011: