If you sign up for ViaTalk and you want to throw a referral my way use the following link.
http://viatalk.com/tools/checkavail/broadband_phone_availability.php?ref_id=51164
The person who referred me gave me his phone number to use as a referral when I signed up but they wouldn't accept it. Make sure you use the email function on their site to invite friends. From there you could build a URL like I did. :-)
You can also make some pretty funny referral pages by messing around with the URL in the email.
Try these