The Link Institute today announced an initiative to rate web content. Most rating systems are designed in a pre-Internet age, and are concerned about Sex, Nudity, Violence and Language. Clue is the knowledgability of the source. Clue may also by tempered by reliability. Thus Bill Gates should have high Clue, except for the underlying suspicion that his words are tailored more to add to Microsoft's profits than to educate or explain.
Expression is the readability and humour of the content.
There was real competition for the benchmark of the zero rating. Taste measures the offensiveness of the content. Posting nude pictures of either Ms Minogue may occassionally be of high taste, but posting a nude Senator Harradine would always be tasteless. Image Polisher Turner did admit some shortcomings to the scheme. Unfortunately, my access to Senator Alston's media releases appears to be blocked.