Hits4pay

Hits4pay is an elite ptr (paid to read) site from ptc-investigation because the site has been up since 2001 and still paying, a huge achievement for this kind of site.  From the time I joined the site it has a $10 bonus signup but it is now lowered to $5 once your account has been approved (Source).  Each email cost $0.02 and the minimum payout is $25 through PayPal or check.  Make sure you have a valid mailing address before joining the site.

Neobux

Neobux is another elite ptc site in ptc-investigations.  The site was launched since 2008 and still paying until today.  The minimum cashout is $2 for the first payout and will increase $1 for each payout until it reaches a fixed minimum amount of $10.  A fee will be deducted depending on the payment processor used.  The site will temporarily suspended your account is inactive for 30 days and permanently suspended after 60 days of inactivity.

Wordlinx

Wordlinx is an Elite site from PTC-Investigation.  The site has been online since 2003 and still paying today.  The minimum payout is $10 with a 5% fee per withdrawal through PayPal. The site also accept AlertPay but I don't know if the site will charge a fee when you cash out.  To read the Term of Service (TOS) please go here.