From seizing domains[1], blocking fairly random sites[2] to threatening ISPs over content[3], governments make Google, Canonical and the like look very attractive in comparison. Especially considering you can dump them with only moderate effort and cost.
[1] http://arstechnica.com/tech-policy/2012/11/feds-seize-101-do...
[2] https://torrentfreak.com/uk-isps-block-pirate-bays-artist-pr...
[3] http://olgierd.bblog.pl/wpis,jak;urzad;celny;bogu;ducha;winn...