Do you have knowledge / access to the DB? Nowadays you can download the Geolocation -> IP lookup table and you can approximate a users location without pinging an API. You do need to download the data and have knowledge of the server though, so I'm not sure if this helps you.
Following along here, I'm very interested in the success of some large affiliate farms. I was obsessed with the money made off of those Mattress review sites. Looking forward to seeing how this works out!
Attention: "role based name" email prefixes such as support, webmaster, info, contact, forum, service, affiliate, admin, traffic, partners, marketing, etc., for our member accounts are not permitted. They are acceptable for a vendor listing, but not for the member email. This is due to bulk email processors scrubbing them for delivery due to extremely high bounce rates. Please apply for membership using a personalized email prefix. Something like firstname.lastname@example.org.
If we discover you signed up with a role based name we will give you only one message to change it. After 3 days your account will be removed if the email is not changed.