So another fair way would have been to day: Moderates are more moderate on line. But not as interesting. :-) And if you dig in, that finding above is somewhat ambiguous.
I thought this was interesting as well: "38% of SNS users have posted positive comments in response to a political post or status update from someone else. Democratic users of SNS (48%) are much more likely to have done this than Republicans (33%) and Independents (37%)."
I have to admit, at least in the spectrum of US liberal/conservative bias, it seems easier to share characteristically liberal views online.
I'm typically progressive in my politics, but not in all areas. Most often, I part from liberal politics when it concerns the use of negative regulation to bring about desired results. IMO the best policies are not guided by 'what is right', but by what encourages that which is closest to 'what is right'. Occasionally online liberal echo chambers spring up where the conversation revolves around identification of injustice rather than pragmatic moves to improve upon the current situation. That's one thing I have to credit conservatives with. Even though they often might appear more self-serving when compared to liberals, they do seem (IMHO) to put more weight upon what can or cannot be done.