Most websites are just static information. You do not need a terms of use to let people read your content. If you are collecting information from your users (beyond the normal stuff that your webserver receives from their web browser just to communicate the webpages), then you may need to specify the terms of use. For example, there are privacy laws about the type of information you're allowed to collect. Also, when someone sends you content, you'll likely need to receive their permission (copyright junk etc.) to be able to do whatever it is you want to do with it, etc.
In Canada (and the US, and most countries afaik), as soon as you write something down it's already under your copyright; you don't need to include a copyright notice, to have some legal rights about the reproduction and distribution of the work. But companies tend to put copyright notices on all their stuff anyway, just to drive the point home I guess, and possibly to cover some strange borderline cases, idk.
For the record, I think copyright law is ******** btw, so I encourage ppl to grant others the rights to reproduce, modify, and distribute their works; either explicitly (ex. through
creative-commons licenses) or implicitly.