In reply to Laura Brown.

I first bought .ca for my domain, then a minute later I added the .com and went with the purchase. 2 years or so later I got the .net and .org.

I think everyone should get their domain.com, domain.org, domian.net and domain.CCTLD (in my situation .ca). I noticed .us is more popular for domain hacks than for Americans. Yet .ca is way more popular among Canadians.