here is a ptc site which is also free to join and hasw a very low minimum payout 1$ and you also get bonus for signing up

here are the features of the site:

Membership is FREE.
E-gold and Paypal payment are processed within 48 hours.
$1 Payout easy to reach!
All emails worth 0.5c - 1c, and lots of emails so that every member can reach payout easily!
10% commission of your direct referrals earnings.
Get Paid to Click, Read Emails, and Signup!
Real time reports of your earnings.
Only accept members from the following countries: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Greece, Iceland, Italy, Netherlands, New Zealand, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom & United States.

http://www.thegoldmail.net