As you can see on my site there isn't any
"copyright notice"
??? At the bottom of every single web page, there's the notice
Copyright C 1998-2004 All rights reserved
You don't say what's copyrighted, so many would assume (incorrectly)
that the materials are owned by you, and that they may not be redistributed
without your permission, and that if they're found on any other website
that the other website is infringing on your copyright.
I realized that most of this is probably a language barrier issue, but
claiming copyright over others' materials is not a good thing.
Undoubtedly parts of the website and its organization are copyrighted
by you, maybe you meant that, but you should be absolutely clear what
you are claiming copyright on.
Tim.