Referral link

From Free Stuff Wiki @ A4F

A referral link is a special link given to you when you sign up on a freebie site. You must give your referral link to others in order for them to count toward your referral requirements. Once someone successfully signs up using your link, they will be listed on your account's status page (as yellow).

Referral links usually contain a unique ID for each user, such as ID=347 (which signifies that the user was the 347th person to register with the site) or ID=username (which identifies the user specifically). Here are some examples of referral links:

http://www.freesite.com/?ID=347
http://www.freesite.com/?r=12
http://www.freesite.com/?referral=12
http://www.freesite.com/?user=batman129