DomainReport.ca - For a while now I've been seeing the VisitLasVegas.ca banners on Yahoo's site, prominently displaying the .ca domain.
I finally decided to visit the site, assuming it would be a Canadian travel company or promotion, but found that it redirects to VisitLasVegas.com
About us - VisitLasVegas.com is the tourist destination web site of the Las Vegas Convention and Visitors Authority (LVCVA). The LVCVA is the official destination marketing organization of Las Vegas and the surrounding Clark County Area. It operates the Las Vegas Convention Center and Cashman Center. The LVCVA brings visitors to Las Vegas and Clark County by promoting tourism, conventions, meetings and special events.
It's interesting that US travel companies are using .ca's in their promotion. Other examples I can think of are Disneyland.ca, DisneyWorld.ca and SeaWorld.ca