Aircraft Registrations

[Toppled Gyro]

Can you help me?
I'm after a web site where I might find which registrations come from their respective countries. Also if anyone happens to know if any of these countries have there own register published on a web site I'd be grateful for the web addresses.
Many thanks, The Toppled One.

Pull knob for quick erect! :)

[The Guvnor]

Here's the UK CAA website (and a rather useful one it is too!):
http://www.srg.caa.co.uk/aircraftregister/ginfo_dbsearch.asp