Many people using Adwords for their affiliate link to drive traffic to their affiliatte links so people buy products through their link and they get the comission.

Does anyone use this technique ? How you market this business ?

its known as Arbitrage marketing or Affiliate Arbitrage..
people find high paying products with low CPC.. They market these niche in adwords and create an optimized landing pages..
this way they make money via adwords

I think the best way to do this is to make a website, use your affiliate links in the content, and banner ads and text ads are also used on the site for the affiliate programs that are related to the topic of your website.

Instead of using AdWords to promote your affiliate links, use AdWords to promote your site, using keywords that are specific to the affiliate programs that you are trying to sell.