[melpomene]

This is done in Sweden by the project Creeper[1]. People embedd images on their websites and the site list all the ip adresses, belonging to the state, that visit those websites.

There is also a similar project, mediacreeper, for IP belonging to the press [2].

[1] http://gnuheter.com/creeper/senaste [2] http://mediacreeper.com/latest

[Semaphor]

Something similar exists in Germany, I forgot the name though.