A lot of affiliates are selling folks's products with AdWords. This has been known as simple cash, since no site is needed.
When Google modified the affiliate policy in January, many affiliates saw their future AdWords revenue disappear up in smoke.
Since Google now accept just one ad from a top domain, you have only two options. This is a informative link on the topic of affiliate.
Hope your adverts have the best CTR, so Google choose your ad rather than all of the others selling the same product.
What about those landing pages?
At least it has to list all of the advantages for the product you are marketing.