Peter,

John's course is definitely top shelf. It is designed for those
that want to write copy that produces instead of making the
client feel entertained.

His Rant newsletters are also packed with information to use.

John made a full year's worth of his Marketing Rebel Rant
available for free. I don't know how long it will be up, however
you can access this free resource at

http://www.marketingrebelrant.com/

Hope this helps,