The question that seems to be on peoples mind lately (at least in Swedish media) is if people are more prone now to lynch mobs because of social media. We see public campaign to fund mobs to assault/murder people. We have people being harassed out of their jobs because of a single less than 140-character message on twitter.
I don't think that the Internet is dooming free speech, but government does seem to be a bit confused on how to deal with lynchmobs that operate online rather than forming up in the street (you can't just have your mounted police gallop into them in order to have them disperse). Police also seems less incline to take campaigns on social media serious, even if the campaigns goal is to encourage crime.