Amazon operates a volume-based advertising fee structure. The more products that are shipped as a result of your affiliate links, the more you'll make per sale. Once you have sold enough products to move up to a different advertising rate, all subsequent sales will give you commission at that rate, until and unless you reach the next fee level. Note that some products are exempt from this commission structure.
Although it has a dynamic and well-designed website, PeerFly has a limited range of offers at any given time (around 8,000). On the upside, it does offer good commission/payout rates, lots of FAQs and educational information, and regular contests and reward programs that can substantially increase your bottom line. Based on online customer reviews, Peerfly enjoys a very high reputation amongst participating affiliates.
Reversal rates are generally in the low single digits; it’s standard for about 1% of transactions to be reversed. If you see offers with extremely high reversal rates, that could be a red flag. It doesn’t mean you should necessarily stay away, but it’s worth understanding why so many transactions are returned. For example, there’s something strange going on with this merchant:
In November 1994, CDNow launched its BuyWeb program. CDNow had the idea that music-oriented websites could review or list albums on their pages that their visitors might be interested in purchasing. These websites could also offer a link that would take visitors directly to CDNow to purchase the albums. The idea for remote purchasing originally arose from conversations with music label Geffen Records in the fall of 1994. The management at Geffen wanted to sell its artists' CD's directly from its website but did not want to implement this capability itself. Geffen asked CDNow if it could design a program where CDNow would handle the order fulfillment. Geffen realized that CDNow could link directly from the artist on its website to Geffen's website, bypassing the CDNow home page and going directly to an artist's music page.