16 Jun 06
03 Aug 07 3:30 am
Well, just consider what they mean.
Gravity means plenty of other affiliates are selling it, so you know it's possible. Possibly a good time to advertise on it's name ;)
You'll obviously want to promote stuff that has a higher $ per visitor value for you. This is going to be a function of % payout, $/sale, refund rate and conversion rate.