Affiliate Marketing Secrets

I am a student of English in a university here, Indonesia, East java. I am in the last semester now. I have been doing an online business since i was in the second semester, about three years ago, but I never got money, but I never give up. I always learn.
Now i am doing online selling: selling two kings of local product and become an amazon affiliate. I have made money from the local products, but so little, Not enough just to pay my internet connection.
Some of my friends invite me to join investment program as like JustBeenPaid, but I have already registered in 2011, i just remembered it several weeks ago and have lost $10 bonus.
Therefore, i try to find other free businesses to earn money, and plan to invest.
Any some of you have suggestions for me?