I don't support gov't censorship. Censorship on a privately-owned website by the owner is another matter entirely. On Free Republic, progressives and those who post vile content are routinely banned, as well they should be on a website that promotes itself as a "gathering place for independent, grass-roots conservatism on the web."
JimRob and Zuckerberg are free to censor to their heart's content, and I have no problem with it. If users deem the content or censorship not to their liking, they're free to leave. It's the way it's always been.
In the case of FB, I personally find their obvious double standards and progressive agenda repugnant, so I'm not a member.