Hello, i'm a just graduated engineer in electronic and telecommunication from Colombia, i dedicated all my years of study to learn about different developing languages, i'm a certified master android developer; recently i decided that i will be a freelancer for some time; i need a positive review in order to earn some contracts, so i'll teach you what you want to know about advertising an monetization completetly free, all what i ask you in return is a possitive review; that should't make you belive that i'll make a poor job; i'm a graduated engineer certified as an andorid master developer i just really need to start in this site.