Here is my case:
I have a category "News" which groups the news posts (dah!) and which are displayed on a special /news/ page (those news posts may belong to other categories as well).
I want these posts to be omitted on ANY OTHER blog page.
The FAQ just deals with excluding posts that belong to ONE SPECIFIC category:
Is there a simple way to exclude all posts tat belong to some category (but not necessarily only this one)?