I was reading the article Canon to begin acquisition of the ".canon" Top-Level Domain name.
It seems Canon is the first company to spring for ICANN's new policy, allowing corporations and businesses to purchase their own TLD (Top Level Domain).
This won't be cheap. The fees quoted on this page are $185,000 US - but, I think it would be a worthy investment as more and more sites are launched.
I forgot that Sweden owns the TLD
.se. My idea still stands... perhaps
.exchange or something.