Difference Between PPC and PTC
Short for pay-per-click, an Internet marketing formula used to price online advertisements. In PPC programs the online advertisers will pay the Internet Publishers the agreed upon PPC rate, regardless if a sale is made or not. Also called cost-per-click (CPC).
PTC means Pay To Click. These sites will pay you an average of one cent to view an ad for 30 seconds.
Legitimate PPC and PTC sites
Below is a list from www.ptc-investigation.com ,that have no major issues or problems, And have been in business for at least 2 years.
Deals 'n' Cash
SOURCE and more info at: www.ptc-investigation.com