MyFreeShares has been in the business of PTC since 2004. They also has a very nice program that shares their profits to members, meaning that the higher traffic that their website generates, the more it earns, and therefore the members will earn more money through shares.

There are also other ways to make money on MyFreeShares besides PTC and shares you can also watch ads, sign up to other sites, complete offers, join in contests, on top of that you can trade shares with other members at the share market (not available at the moment).

If you are interested, click here to join: MyFreeShares

Here's my payment proof