Adbuddy.Net is a simple PTC site that pays you up to $0.005 for each advertisement you view for 10 to 30 seconds. It also pays you 100% the amount your direct referrals earn.
Adbuddy.Net also offers the ability tou upgrade to a Premiere account. When you do this you will earn up to $0.007 for each ad your direct referrals view plus a commission if your referrals also upgrade to a Premiere account.
All payments are made through PayPal on a weekly basis and you can request payment as long as your account balance is at least $5.00.
Overall Adbuddy.Net is a quite good site, with its only drawback being the fact that it doesn't pay much.