CareerOne have had a number of chances to get going in this market and have not quite made it. Monster had a start and left but as far as I can remember they left during the tech wreck, so we can't hold it against them. So this might work but I suspect not.
Seek is not perfect in fact it's quite difficult and to my mind less effective than it used to be so there is an opportunity for someone but I suspect niche solutions are eventually going to be the way of the future and there are already a lot of them.
I live in Australia but had an American girlfriend and we started this tradition. I then had an american client and we continued the tradition. So yesterday Australian time we did the same thing. I think its a really good idea to stop and be thankful. It's one great american tradition.