The 4.gg web site provides bar-codes that can be read using many camera phones and link to a web site.
Examples - try scanning them off your screen with your phone!
If you do not already have a reader in your phone there are free ones you can download. Neoreader seems quite good and is free, though all bar-codes are redirected via their site so they could log them.
Visiting this page (4.gg) from your mobile may provide a convenient link to download the reader.