How would I go about A/B testing different widgets? The Traffic Report seems to aggregate by domain rather than by widget ID, so I can't measure them from there. Some affiliate programs let the publisher set a 'campaign code', which is an arbitrary field that's used to categorise the click-throughs and sales in the reports. If there's an equivalent for EdenFantasys, please let me know.
Short of doing my own client-side click tracking (which still wouldn't allow me to attribute sales), I don't see a way to do this. Any ideas?