How many people use ptc sites to get traffic to their sites? Is it a effective way to get traffic? Also what is your experiance?
I have used it only to drive traffic to some social sites like squidoo that gave me better ranging on those sites. To use that traffic direct to your site won't give you any conversion. Only owner of some PTC site would tell you that's good to use that traffic.
PTC programs pays people to go to sites which are promoting there, so what do you thing why PTC users goes to your site? Yes, only for money, they aren't interesting in you page content, they just close your site after PTC count their visit. So better spend money to buy some backlinks instead PTC traffic.
I have used them before for driving some traffic to one of my site but I found out that it is a waste of time because they aren't converting.
It all depends on the content of your ad. I know people who buy ptc traffic for cpa dating offers and do pretty good : ))