Several people have written to note that Rogers appears to have adopted a new approach for failed DNS lookups (ie. instances where the domain name does not resolve). Users are now directed to a Rogers-sponsored page that includes links to Rogers content, paid search results, and additional search results generated by Yahoo! Rogers includes an explanation that states:
These search results were provided because the domain name you entered into the address bar is either improperly formatted, currently unavailable, nonexistent, or part of a key word search. Rogers Supported Search Results is a service designed to enhance your web surfing experience by eliminating many of the error pages you encounter as you surf.
While some people will not like this service, note that Rogers does give users the option of opting-out.
Update: Please read the many comments that identify troubling issues with Rogers' decision and the shortcomings of the opt-out approach.