What do I need to connect my Wii to the internet?
There are several options. You can use either a wireless router (must be B/G compatible), a Nintendo Ethernet adapter (not yet released), Nintendo USB WiFi adpter (the same one as for the DS), or a similar adapter (such as WiFiMAX). Read the instruction manual for your device for more specific directions. Also check out the “Wii Official Wireless Internet Connection Guide” thread for more information on the Wii-end of things.