Hm, it appears Google gets more useful every day!

A new 'hidden' feature allows you to type in an aircraft registry number (ie N782UA) and Google will provide you with a link to the faa.gov website showing the owner, age, etc. of that aircraft. thought this to be a fun tool I stumbled upon...

FYI, this also works for phone numbers, UPC codes, package tracking numbers, and a lot of other things that are hidden there...