The great firewall of australia is a bipartisan move in australia to erect a firewall similar to china. The rallying call is "for the children", the claimed purpose is to stop child pornography. Any politician who opposes it is labeled a child pornography supporter. One of the chief private proponents of it is a high ranking manager in australian telcom, his boss received a personal letter from the minister of communication to shut him up. (instead they published the letter).
Recently, a law was passed (but quickly repealed) to temporarily suspend free speech rights to blogs in australia due to "their use to spread lies about elected officials during election periods".
The kicker is that when (against their wishes) they were forced to publish the current banlist, it was found to be mostly NOT illegal porn, illegal porn is less than 50%, legal porn makes another big portion, and perfectly legitimate non pornographic sites make the rest. (and a good portion of those don't actually fall under any of the ban categories, seemingly banned by mistake)
the ban list also includes political positions, for example, anti abortion sites are on the ban list. Recently a bill was proposed to add any website that criticizes the deploying of the great firewall of Australia to the banlist.
Oh, it is also easy to bypass, has a 10% false positive rate, a 20% missed negatives rate, and an 80% slowdown. (aka, browsing speed going from 10mbps to 2mbps). And that is on HTTP connections which are the only ones which the government has allowed to be tested as of yet.