Ok that's been added but just to be very clear here, Network-linked sites work best with cookie based sales, Customer Base sales will work however the problem exists that the user might have changed some details from being with one site and ordering with another, our system will match as best it can such as if the email address for one customer was the same over both sites then this would be a 100% match and you get credited for it.
However the good news is that cookies are "backwards compatible", and as NI has 999 Day cookie (so has Gadget Storm) it will mean that anyone who has got a prior cookie for NI installed and visits and buys from Gadget Strom that these sales will count.
Also network-linked sites belong to there own little groups, so if something is network linked, it’s only linked to a few sites and doesn’t effect or transfer to any other network linked sites out side of the group that site belongs in. However one great feature and we are yet to see merchants do this, is for merchants from totally different companies to join a network together. For example it’s possible for a dating site and say an adult toy store to link up with each other, i.e. one has a link for dating and the other has an adult toy link if any of the affiliates traffic was to turn up on one site but join or purchase from the other, the sales commission would still be credited to the affiliate. Same goes if each where to give a mention to the other in a newsletter as long as the person reading it still had a valid cookie then you still get credited with the sale, provided of course each merchant is on Paid On Results
Edit: Update as I have just been told by technical that I got the non-cookie customer base part wrong and in fact that can track over more than one site.