Product search by bar code

[ClinkatyClank]

Is there a website where you can search a product by bar code ?

[boxtops]

http://www.upcdatabase.com/itemform.asp

[boxtops]

(not sure if it's free, though!)

[THECORBYLOON]

http://www.itemlookup.net/

[hc4361]

My smartphone does it, using the camera as a scanner.