I have thirty referrals and I obviously know how to get them. Either everyone I know, minus thirty, has messed up making their accounts, or referrals don't work anymore. You stopped being able to get them when you started having to use your real E-mail address. I understand why you would need a real E-mail, but shouldn't something be done ?
Well you get referrals by giving your referral link to your freinds through an email, AIM, yahoo, or somthing else. If they click on it and register I believe, you get a referral that is worth 10AP.
