Facebook is very valuable in countries where press freedom is not good (if facebook is not blocked yet). My country (Azerbaijan) is one of the worst countries in terms of press freedom. The only “free press” we have is a facebook. There are many goverment’s trolls, but everybody understands when trolls write something (trolls get average salary). On the other hand, goverment follows oppositions’ discussions on facebook and responds accordingly. That is the only platform we have now goverment and oppositions speak with each other.