How to connect PC to internet without WiFi or Ethernet

If you want to connect your Windows PC to the internet without Wi-Fi or Ethernet, follow this guide and use the methods we ...
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 ...