Affiliate/Partner program – marketing instrument for boosting sales and blanket disposal of the product.
Referral link – in most cases those are links, that are integrated to site code or another resources (apps, blogs, social media and others). There’s also a possibility of affiliate widgets, that allows you to implement referral code directly into your site.
Reseller Program is a model of partnership where a company owner grants funds to affiliate for build he refers.
SaaS White Label Program is a type of partnership where partners rebrand company white-label software and sell them to their users.
Affiliate tracking is transactional analysis for each customer who passed on your referral links. In most cases it is presented in your partner admin panel.