This website entitled "First Among Equals" is a government of Canada website with information about the office of Prime Minister. It starts with a headline saying "this document is no longer in effect. It has been archived online and is kept purely for historical purposes."
However, it is a great source of information if you want to clarify for students what the Prime Minister really is and does. Many students do not understand the difference between a Prime Minister and a President and what power the office really holds. It is not simply a chronology of Prime Ministers who have held the office, but does include information and quotes about specific leaders.
I usually include these types of facts (how our government works) right after the section on confederation.
