I don't think one should censor the internet, it's the easy way out and costs a society rather than individual perpetrators. Censorship is wrong. I personally would of liked to see the CPS bring charges against Wikipedia.
Lets be real clear here... this is an image that is of a minor in a sexually provocative pose being used for profit (marketing). It is child pornography. That's not in a grey area, it's point blank illegal to distribute or publish such material in the UK. In such cases however censorship often adds to hype and can be counterproductive, I want to stop hearing political groups using child porn as a campaign gimmick and do something substantive.
However, there's much hypocrisy in this area, I personally think a lot of acceptable content of pop videos featuring schoolgirls are at best cynical... And hey, I'm all for porn on TV, cinemas advertising, I couldn't care as long as it's consenting adults sex and sexuality is good.
If I was directing the CPS in the UK I'd prosecute the publishers (Wikipedia). I realise this might be a controvertial opinion, I'd just like to clear the deck of the hypocrisy on both sides of the argument.