A List Apart: Where Our Standards Went Wrong

http://alistapart.com/articles/whereourstandardswentwrong
"Here we have two well-known standardistas, both of whom have done (and will do) more for the adoption of standards than this author ever will. Yet both have different takes on what role validation plays in designing for the web. In fact, they perfectly represent the division that exists between standards advocates today. You probably find yourself taking one of two positions on validation:"