I do not get any progress from product referrals. Do you gain any from referrals besides FF ? Do they use cookies? If yes, do the cookies last long? Do they really pay? or Do they really pay a lots?
I haven't gotten anything yet, but maybe in the future I will. The button looks nice and doesn't junk up my page too much, so I'll keep it. You never know if you'll get future product referrals.