You may or may not have heard of Wolfram Alpha.
It is a search engine. But unlike anything you know.
This little widget below gives you a feel for what it does. Enter any two countries to get a comparison of the mobile phone (cell phone) subscriptions.
Just like that.
Fun as that may be - and there are many others - what is worth thinking about is where and how we interact with knowledge, what we need to learn and what we need to access.
What are the possibilities for commerce?
It boggles the mind.