03 May 10 10:53 am
Whenever someone clicks on your affiliate link, it creates a cookie that stores your affiliate code so that the merchant can track who referred that visitor. So even if he did not immediately purchased the product but decided to buy it on later date instead, you will still get the commission. Not unless he clears his browser's cookies! :) By the way, remember that merchants set the expiration of the cookie to a certain number of days like 30 days, 90 days, etc. So if a visitor signs up after the cookie expires, you will not get a commission.
And yes, you can directly link your PPC ads to the merchant site using your affiliate link.