I have been doing lots of writing for affiliate marketers and have put together a great list of buying keywords. These are keywords which people are going to use to find your reviews and purchase from your link.
You can simply add any of the following keywords to your main keywords you are trying to rank for. This means that you will be targeting customers who are ready to buy, they have all the information that they need and are ready to click on that order link. The thing is we want it to be your link.
specific model names
As you can see from this link you can add certain sizes and colors to any of your keywords. This works well if you are targeting clothing and shoes. Try adding these keywords into your next article and let me know your results.