Targeted online store - like nerd store, gay store..

Ok so i quite new in Amazon, i have some blogs about laptop reviews, they are all translated via translator and fixed by myself, but they have some errors and if you read them whole you'll find out they even if they are professional they have grammar errors.
Selling things via reviews kinda suck, people usually won't search for a review of special laptop, because they needed to hear somewhere for that product before.. so they would need to find the product they want to buy, google review of that product (go for results on second, third or who know what page of G to find my site) and then buy it. And things just don't work that way.
So is anyone earning any money with targeted online store, like i create nerd store and sell calculators, math books or something.. and use activated adwords acc to promote them ?