Internet Theft

The owner of this website, http://worldofgardens.ca/water_garden.htm
 a woman named Roz, who lives in Ontario has decided the way to make herself look good is to steal articles from my website and put them on hers.  I have written to her, her website tech and admin asking them to remove what she plagiarized and gotten no results, not even and answer to my letter.  What does one do in cases like this?

What she stole:
http://worldofgardens.ca/water_garden.htm

Who did the stealing:

Domain name:           worldofgardens.ca
Domain status:         registered
Creation date:         2004/04/05
Expiry date:           2014/04/05
Updated date:          2011/02/04

Registrar:
    Name:              Go Daddy Domains Canada, Inc
    Number:            2316042

Registrant:
    Name:              RipNET Limited

Administrative contact:
    Name:              Rob Hall
    Postal address:    43 Auriga Drive
                       Ottawa ON K2E 7Y8 Canada
    Phone:             +1.6132211215
    Fax:
    Email:             pmbt511831@privacy.ca

Technical contact:
    Name:              Jamie Orzechowski
    Postal address:    101 Water St West
                       Brockville ON K6V 3M1 Canada
    Phone:             613-342-3946
    Fax:               613-342-8672
    Email:             admin@ripnet.com

They are based in Canada, so I have no idea if the FCC has any reciprocal agreements with Canada.

I am furious that someone would blatantly steal what is mine and then do nothing about it when confronted.

What to do?