My domain provider, GoDaddy.com, tells me that the reason that when I go to MKinMotion.com, a domain I own and have routed to this blog, it's my computer(s) that are not forwarding the domain to blogspot. Do me a favor and try it yourself from around the world and let me know in the comments whether you see this blog or a page saying that I'm "working on my website". I get the latter on every computer I've tried on two different ISPs.
Update: I got a second email from GoDaddy support and it actually included some technical info. For some reason, the IP address they assign to my domain changed. I updated it and it should be fixed within 24 hours. Because of the way the internet works, your ISP may update the DNS before or after other ISPs. Propagation.