Matt Cutt’s had answered a great question earlier this week about using ccTLD’s to create a unique domain name such as www.google.it for “Google It”. “Should I use ccTLDs for sites not targeted to those countries?” In-fact there is an awesome tool out there created by @case, @ceedub, @connor, and @rr called Domainr which quickly finds you some creative domain names that can be registered via various ccTLD’s. The problem here is that Google geo-targets their search results – and as such country code top level domains are generally targeted to the country they are from.
However Google does acknowledge the use of some ccTLD’s for generic use; and as such does not tie these down to specific regions. These domains include .io, .cc, .cd, etc. You can view a full list of generic country code top level domains here.