To my American colleagues, who recently celebrated the 50th anniversary of their much used Strunk & White style guide, may I gently prod you in the direction of this article by Geoffrey Pullum of the Language Log.
I’ve seen Professor Pullum speak, hilariously, about english grammar and whilst I’m certain that he could find many issues with the content I publish here, I’m certain he would never be nasty or vindictive in his comments. However, in this post, in which he responds to some of the people who have commented about his article, he proves that he has the wit and style to handle such things. Both are well worth a read, even if you don’t agree with his point of view.