You can get direct referrals for any program from a referral sites. I know a site from which I got a few referrals for neobux and upbux. If you want the link, just add me as your friend and I would send it to you.
There's a good question! I wish I knew. I don't want to "rent" or "buy" referrals, but I'm not having any luck getting any myself! Maybe one day, I'll be lucky enough to have someone actually read my blog and join under me.