There are so many free places to advertise, and in my opinion it is much better to use free advertising. With free advertising does not spend money that you can use to purchase the TripleClicks. Free places to advertise are various groups on FB, forums ... You're just a Google searc free advertising and you will find a lot of places.
Paid advertising does not guarantee you more success than free, so my advice is definitely free advertising, a lot of success.
