Many people say there is a lot of money to be made using affiliate programs, but it appears that many of the top internet marketers use black hat techniques.
From 5 star affiliate programs.
Cookie stuffing is STEALING! Those here that are defending the practice - if you work hard to make money through affiliate programs you have undoubtedly been a victim of this kind of theft.
Let’s say you do PPC. You PAID to get that visitor to read your ad, you spent time building the landing page and you sent that PPC visitor to the merchant. It’s YOUR sale! Then the visitor leaves. Reads a forum about something totally unrelated, never clicks a link or does anything. Goes back to buy and the cookie stuffer who did NO legitimate work at all - steals your sale. You PAID for that visitor, don’t you feel cheated? You should!
I have often felt my affiliate conversions were not being tracked accurately , seems it is widespread , as this eBay lawsuit shows . That is why I like to very sure of the kind of company I am dealing with and spend hours researching, before I sign up. If you want to make money online using white hat techniques , flat monthly advertising rates seem a better bet.
Added: It appears that the amount stolen was approx $1 million a month , this thread on EPN ( eBay Partners Network) has more information