If you are new affiliate, you can get started with free methods like:
-join social network
-join social book marketing
-use free classified ads
-use free traffic system
Hope these methods can help you.
In fact, you should learn what is affiliate marketing first; it's just selling others' products through our platforms. But you might have good public relation, high traffic blog or good number of contacts so that you can sell the product and earn good sum through it.