Here's what a modem and router actually do (and why you need both)

What's the difference between a modem and a router? Learn how these two devices work together to connect your home to the ...
Ars Technica

Issues with sharing internet connection over ad-hoc WLAN connection

I have a Vista PC connected to the internet via a 3G network card that does not work with WLAN routers. Now I'd like to share that internet connection with my (XP) laptop, an iPod Touch ...