A List Apart: 10 Tips on Writing the Living Web
Living sites are only as good as today’s update. If the words are dull, nobody will read them, and nobody will come back. If the words are wrong, people will be misled, disappointed, infuriated. If the words aren’t there, people will shake their heads and lament your untimely demise.
Probably half or a little more. So why not 10/10?