I saw the blue light on my Wii indicating that an update was available. Reading the message, it mentions that if you become "connection ambassador" by getting your friends' to go online with their Wiis, you will each get 500 points for the referral.
If you refer 10 friends, you'll get access to download the entire NES library for free.
Refer 20 friends, and get free access to the entire NES, SNES and N64 library.
There's no official link, but the link I've provided is from the Aussie Nintendo site.
But I don't have 20 friends
with Wii consoles… :(