Affiliate marketing has been part of blogging for years, but most still fail to make it a consistent source of income. They join programs, place links, write content-and then wonder why the results feel so slow or unpredictable. The problem isn’t affiliate marketing itself, but rather the kind of affiliate programs bloggers choose. Where most creators focus on one-time commissions, in the background lies an often-quieter-but-much-more-sustainable model: two-tier affiliate pr