Odd four letter .ca's in use (1.Viewing)

Found this odd 4 letter .ca in actual use and still have not confirmed it's meaning but the website is fantastic with lots of details.

I cam across it trying to get a list of Credit Unions in Canada: 30 Largest Credit Unions in Canada | WOWA.ca

Great financial site, unusual domain but it all works

Canada’s Largest Personal Finance Encyclopedia | WOWA.ca

Saw this on TV while watching a hockey game Zown.ca and they are competing with another 4 letter domain Zolo.ca. (A much bigger company)