I noticed that alot of us have Wii's so I thought that this might come in handy
(just remember that they have to add your code to there Wii as well as you adding them)
*UPDATED Post in this thread your Wii code:
Wobbles & StirCrazy: 7447 9852 4481 9399
Arcanegirl: 0135-8286-5635-4091
Lauz_1601: 1017 6407 3985 6268
Vicky: 8641 6640 3060 1108
Imi: 5919 2592 4795 9881
These photos will walk you through finding your wii number. This is the number that your friends will need to input into their system to add you as a friend.
Boot up your wii and go to the main screen.
Click the wii message board icon. This is found on the bottom right corner of the main screen.
Next, select the Create Message button on the bottom left corner of the Message screen.
Now, click the Address Book in the Create Message screen.
If you have people in your address book, then your contacts will be displayed. Click the (-) button on the left side of the screen. If you don't have contacts, you will jump automatically to the next screen.
Finally, we find the your wii console number. This will be the number that you send to your friends so they can add you to their systems.
Also, by clicking the register button here, you can add your friends (via their wii numbers) to your system.