Heard of QR Codes?
Yet another useful invention from Japan. Extremely useful in this era of mobile devices that have usable web browsers. You might have seen them on Coke cans these days or more commonly on web pages for mobile apps.
And those of you who have been to the far east might even have seen them in adverts on the sides of buses in Singapore! Create your own and have a play with them here. Android users should hit the Market and get the Barcode Scanner app to scan in the above code.
Have fun! 😉