For more information about the CPS in Norway, we recommend BarnasRett (Children's Rights). The website has got many good and useful articles about CPS related issues, and they often update.
We fins it however important to warn against some of the perspectives promoted on the website. An organisation called GFSR, nominally working against the CPS, is promoted on BarnasRett's Norwegian web pages. There are easily visible links to GFSR's "blacklist" of CPS supporters. On this blacklist CPS names people supporting the CPS system in one way or another, without presenting any documentation, justification or explanation at all. It is just a list of names. And here you can find "Monas 10 bud" (Mona's 10 Commandments) where parents getting a letter from the CPS are recommending to throw it in the dustbin (1st commandment). By that parents in a difficult situation are recommended to throw documentation away.