The better way is to make a blog about a particular niche, post naturally (first person view) and link all mentioned products to your amazon affiliate links. I also discovered that banners are less effective than inline text links. People are always curios about the links so the click through on links have a far higher percentage that banner CTR.
For example, I post about how my new GPS system helped me find an unfamiliar place. I'll just link that "GPS system" to Amazon's GPS page with GPS products without over exaggerating the article.
Try this instead of writing tons of review articles..