These customers can directly go to the business websites and buy whatever they want. But some times the said customers who frequently visit a particular blog and that particular blog are an affiliate marketer for a business which at that particular time is giving some form of discount. Now this discount or free trial will attract the customer to click/buy through the link provided on the affiliate marketer’s web page. The customer who might not be aware that there is a discount on a particular product is enticed to buy and complete the process.
Some merchants will create a specific and custom landing page for an affiliate to send referrals to that contains both the merchant's branding and the referring affiliate's branding. Example – a merchant might create a page on the merchant's website that shows a lead form that contains both the merchant's logo and the specific affiliate's logo on the page. This is referred to as Co-branding. Many times merchants limit Co-Branding opportunities to only being available to Super Affiliates.
Some advertisers offer multi-tier programs that distribute commission into a hierarchical referral network of sign-ups and sub-partners. In practical terms, publisher "A" signs up to the program with an advertiser and gets rewarded for the agreed activity conducted by a referred visitor. If publisher "A" attracts publishers "B" and "C" to sign up for the same program using his sign-up code, all future activities performed by publishers "B" and "C" will result in additional commission (at a lower rate) for publisher "A".
You should also make sure you aren't competing with your own affiliates for eyeballs. Any marketing channels you're using, such as search engines, content sites or e-mail lists, should be off limits to your affiliates. Put marketing restrictions into your affiliate agreement and notify partners immediately. It's your program--you set the rules. Or, if you prefer, you can let your affiliates run the majority of your internet marketing.