Google has added some new features details from the Google Weblog:

"Google has added more search by number features ,Area Codes, e.g. 650, bring up maps, UPC codes, e.g. 073333531084 or 036000250015, bring up some information about the product , Flight numbers, e.g. usair 50, provide links to flight tracking, Vehicle ID (VIN) numbers, e.g. JH4NA1157MT001832, link to a CARFAX report on what kind of car and its status, U.S. Postal Service tracking numbers link to package status." [Google Weblog]

Be sure to visit the Google Weblog for the links to the new features.