I found Cash Camel last week when searching Google for cheap online advertising. I was extremely skeptical when I saw that they could send 1,000 visitors to my personal website for only $0.25.
Although I thought this was surely "too good to be true", I decided to give it a try. I invested a total of $2 and received 8,000 PTC credits.
I started the campaign and to my amazement once the 8,000 visitors had actually been achieved! I even managed to add several to my mailing list.
I will use this service again!