In Tucows.Com Co. v. Lojas Renner S.A., 2011 ONCA 548 (available here) the Court of Appeal for Ontario considered whether to take jurisdiction in a dispute over the ownership of an internet domain name.
Tucows is a Nova Scotia corporation with its principal office in Ontario. Renner is a Brazilian corporation operating a series of retail department stores. Tucows bought 30,000 domain names from another corporation, and one of the names was renner.com. Tucows is the registrant of that domain name with the internationally-recognized non-profit organization, the Internet Corporation for Assigned Names and Numbers (ICANN). Renner complained to WIPO and in response Tucows sued in Ontario, seeking a declaration that it was the owner of the domain name. Renner objected to Ontario’s jurisdiction over the dispute.