Terence, you didn't refer to the CEOP list in your post. You referred to "pornography" right from the start, setting the tone of the conversation to be about XXX content and not illegal content. CEOP doesn't distribute a list either - that's IWF. When David Cameron refers to a keyword "blacklist that's obvious", he's not referring to the porn keyword list that you talk about in the post. He's referring to the IWF list. And, I hope he's not referring to the entire list, but a small sub-set list. Otherwise we would face the same problem that you talk about. There are key phrases that should not return any results - it doesn't take much imagination to think about what they should be. And, as for the slang, I don't think anything that could have a double meaning should be blocked. They must also think about how anything they look at, translates into other languages. It took us more than 18 months to tweak our rules and keyword list - and it's a constant cycle of improvement. As for your last question, I'm sad to say that I haven't witnessed anyone qualified to make such judgement. I can think of a handful of people I would pull together to evaluate the list and then shortlist what could be implemented - including me 🙂